21125026880

素因数分解:

$2^6\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{347}}^1$

素因数の和:450

約数の個数: 336

約数和(自身を含む): 58194464256

約数和(自身を除く): 37069437376

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 19, 20, 31, 32, 34, 38, 40, 62, 64, 68, 76, 80, 85, 95, 124, 136, 152, 155, 160, 170, 190, 248, 272, 304, 310, 320, 323, 340, 347, 361, 380, 496, 527, 544, 589, 608, 620, 646, 680, 694, 722, 760, 992, 1054, 1088, 1178, 1216, 1240, 1292, 1360, 1388, 1444, 1520, 1615, 1735, 1805, 1984, 2108, 2356, 2480, 2584, 2635, 2720, 2776, 2888, 2945, 3040, 3230, 3470, 3610, 4216, 4712, 4960, 5168, 5270, 5440, 5552, 5776, 5890, 5899, 6080, 6137, 6460, 6593, 6940, 7220, 8432, 9424, 9920, 10013, 10336, 10540, 10757, 11104, 11191, 11552, 11780, 11798, 12274, 12920, 13186, 13880, 14440, 16864, 18848, 20026, 20672, 21080, 21514, 22208, 22382, 23104, 23560, 23596, 24548, 25840, 26372, 27760, 28880, 29495, 30685, 32965, 33728, 37696, 40052, 42160, 43028, 44764, 47120, 47192, 49096, 50065, 51680, 52744, 53785, 55520, 55955, 57760, 58990, 61370, 65930, 80104, 84320, 86056, 89528, 94240, 94384, 98192, 100130, 103360, 105488, 107570, 111040, 111910, 112081, 115520, 117980, 122740, 125267, 131860, 160208, 168640, 172112, 179056, 182869, 188480, 188768, 190247, 196384, 200260, 204383, 210976, 215140, 223820, 224162, 235960, 245480, 250534, 263720, 320416, 344224, 358112, 365738, 377536, 380494, 392768, 400520, 408766, 421952, 430280, 447640, 448324, 471920, 490960, 501068, 527440, 560405, 626335, 640832, 688448, 716224, 731476, 760988, 801040, 817532, 860560, 895280, 896648, 914345, 943840, 951235, 981920, 1002136, 1021915, 1054880, 1120810, 1252670, 1462952, 1521976, 1602080, 1635064, 1721120, 1790560, 1793296, 1828690, 1887680, 1902470, 1963840, 2004272, 2043830, 2109760, 2129539, 2241620, 2505340, 2925904, 3043952, 3204160, 3270128, 3442240, 3474511, 3581120, 3586592, 3657380, 3804940, 3883277, 4008544, 4087660, 4259078, 4483240, 5010680, 5851808, 6087904, 6540256, 6949022, 7173184, 7314760, 7609880, 7766554, 8017088, 8175320, 8518156, 8966480, 10021360, 10647695, 11703616, 12175808, 13080512, 13898044, 14629520, 15219760, 15533108, 16350640, 17036312, 17372555, 17932960, 19416385, 20042720, 21295390, 27796088, 29259040, 30439520, 31066216, 32701280, 34072624, 34745110, 35865920, 38832770, 40085440, 42590780, 55592176, 58518080, 60879040, 62132432, 65402560, 66015709, 68145248, 69490220, 77665540, 85181560, 111184352, 124264864, 132031418, 136290496, 138980440, 155331080, 170363120, 222368704, 248529728, 264062836, 277960880, 310662160, 330078545, 340726240, 528125672, 555921760, 621324320, 660157090, 681452480, 1056251344, 1111843520, 1242648640, 1320314180, 2112502688, 2640628360, 4225005376, 5281256720, 10562513440, 21125026880]

約数ペア:

[(1, 21125026880), (2, 10562513440), (4, 5281256720), (5, 4225005376), (8, 2640628360), (10, 2112502688), (16, 1320314180), (17, 1242648640), (19, 1111843520), (20, 1056251344), (31, 681452480), (32, 660157090), (34, 621324320), (38, 555921760), (40, 528125672), (62, 340726240), (64, 330078545), (68, 310662160), (76, 277960880), (80, 264062836), (85, 248529728), (95, 222368704), (124, 170363120), (136, 155331080), (152, 138980440), (155, 136290496), (160, 132031418), (170, 124264864), (190, 111184352), (248, 85181560), (272, 77665540), (304, 69490220), (310, 68145248), (320, 66015709), (323, 65402560), (340, 62132432), (347, 60879040), (361, 58518080), (380, 55592176), (496, 42590780), (527, 40085440), (544, 38832770), (589, 35865920), (608, 34745110), (620, 34072624), (646, 32701280), (680, 31066216), (694, 30439520), (722, 29259040), (760, 27796088), (992, 21295390), (1054, 20042720), (1088, 19416385), (1178, 17932960), (1216, 17372555), (1240, 17036312), (1292, 16350640), (1360, 15533108), (1388, 15219760), (1444, 14629520), (1520, 13898044), (1615, 13080512), (1735, 12175808), (1805, 11703616), (1984, 10647695), (2108, 10021360), (2356, 8966480), (2480, 8518156), (2584, 8175320), (2635, 8017088), (2720, 7766554), (2776, 7609880), (2888, 7314760), (2945, 7173184), (3040, 6949022), (3230, 6540256), (3470, 6087904), (3610, 5851808), (4216, 5010680), (4712, 4483240), (4960, 4259078), (5168, 4087660), (5270, 4008544), (5440, 3883277), (5552, 3804940), (5776, 3657380), (5890, 3586592), (5899, 3581120), (6080, 3474511), (6137, 3442240), (6460, 3270128), (6593, 3204160), (6940, 3043952), (7220, 2925904), (8432, 2505340), (9424, 2241620), (9920, 2129539), (10013, 2109760), (10336, 2043830), (10540, 2004272), (10757, 1963840), (11104, 1902470), (11191, 1887680), (11552, 1828690), (11780, 1793296), (11798, 1790560), (12274, 1721120), (12920, 1635064), (13186, 1602080), (13880, 1521976), (14440, 1462952), (16864, 1252670), (18848, 1120810), (20026, 1054880), (20672, 1021915), (21080, 1002136), (21514, 981920), (22208, 951235), (22382, 943840), (23104, 914345), (23560, 896648), (23596, 895280), (24548, 860560), (25840, 817532), (26372, 801040), (27760, 760988), (28880, 731476), (29495, 716224), (30685, 688448), (32965, 640832), (33728, 626335), (37696, 560405), (40052, 527440), (42160, 501068), (43028, 490960), (44764, 471920), (47120, 448324), (47192, 447640), (49096, 430280), (50065, 421952), (51680, 408766), (52744, 400520), (53785, 392768), (55520, 380494), (55955, 377536), (57760, 365738), (58990, 358112), (61370, 344224), (65930, 320416), (80104, 263720), (84320, 250534), (86056, 245480), (89528, 235960), (94240, 224162), (94384, 223820), (98192, 215140), (100130, 210976), (103360, 204383), (105488, 200260), (107570, 196384), (111040, 190247), (111910, 188768), (112081, 188480), (115520, 182869), (117980, 179056), (122740, 172112), (125267, 168640), (131860, 160208)]