21860640

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1$

素因数の和:104

約数の個数: 288

約数和(自身を含む): 84913920

約数和(自身を除く): 63053280

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 19, 20, 24, 30, 32, 34, 36, 38, 40, 45, 47, 48, 51, 57, 60, 68, 72, 76, 80, 85, 90, 94, 95, 96, 102, 114, 120, 136, 141, 144, 152, 153, 160, 170, 171, 180, 188, 190, 204, 228, 235, 240, 255, 272, 282, 285, 288, 304, 306, 323, 340, 342, 360, 376, 380, 408, 423, 456, 470, 480, 510, 544, 564, 570, 608, 612, 646, 680, 684, 705, 720, 752, 760, 765, 799, 816, 846, 855, 893, 912, 940, 969, 1020, 1128, 1140, 1224, 1292, 1360, 1368, 1410, 1440, 1504, 1520, 1530, 1598, 1615, 1632, 1692, 1710, 1786, 1824, 1880, 1938, 2040, 2115, 2256, 2280, 2397, 2448, 2584, 2679, 2720, 2736, 2820, 2907, 3040, 3060, 3196, 3230, 3384, 3420, 3572, 3760, 3876, 3995, 4080, 4230, 4465, 4512, 4560, 4794, 4845, 4896, 5168, 5358, 5472, 5640, 5814, 6120, 6392, 6460, 6768, 6840, 7144, 7191, 7520, 7752, 7990, 8037, 8160, 8460, 8930, 9120, 9588, 9690, 10336, 10716, 11280, 11628, 11985, 12240, 12784, 12920, 13395, 13536, 13680, 14288, 14382, 14535, 15181, 15504, 15980, 16074, 16920, 17860, 19176, 19380, 21432, 22560, 23256, 23970, 24480, 25568, 25840, 26790, 27360, 28576, 28764, 29070, 30362, 31008, 31960, 32148, 33840, 35720, 35955, 38352, 38760, 40185, 42864, 45543, 46512, 47940, 51680, 53580, 57528, 58140, 60724, 63920, 64296, 67680, 71440, 71910, 75905, 76704, 77520, 80370, 85728, 91086, 93024, 95880, 107160, 115056, 116280, 121448, 127840, 128592, 136629, 142880, 143820, 151810, 155040, 160740, 182172, 191760, 214320, 227715, 230112, 232560, 242896, 257184, 273258, 287640, 303620, 321480, 364344, 383520, 428640, 455430, 465120, 485792, 546516, 575280, 607240, 642960, 683145, 728688, 910860, 1093032, 1150560, 1214480, 1285920, 1366290, 1457376, 1821720, 2186064, 2428960, 2732580, 3643440, 4372128, 5465160, 7286880, 10930320, 21860640]

約数ペア:

[(1, 21860640), (2, 10930320), (3, 7286880), (4, 5465160), (5, 4372128), (6, 3643440), (8, 2732580), (9, 2428960), (10, 2186064), (12, 1821720), (15, 1457376), (16, 1366290), (17, 1285920), (18, 1214480), (19, 1150560), (20, 1093032), (24, 910860), (30, 728688), (32, 683145), (34, 642960), (36, 607240), (38, 575280), (40, 546516), (45, 485792), (47, 465120), (48, 455430), (51, 428640), (57, 383520), (60, 364344), (68, 321480), (72, 303620), (76, 287640), (80, 273258), (85, 257184), (90, 242896), (94, 232560), (95, 230112), (96, 227715), (102, 214320), (114, 191760), (120, 182172), (136, 160740), (141, 155040), (144, 151810), (152, 143820), (153, 142880), (160, 136629), (170, 128592), (171, 127840), (180, 121448), (188, 116280), (190, 115056), (204, 107160), (228, 95880), (235, 93024), (240, 91086), (255, 85728), (272, 80370), (282, 77520), (285, 76704), (288, 75905), (304, 71910), (306, 71440), (323, 67680), (340, 64296), (342, 63920), (360, 60724), (376, 58140), (380, 57528), (408, 53580), (423, 51680), (456, 47940), (470, 46512), (480, 45543), (510, 42864), (544, 40185), (564, 38760), (570, 38352), (608, 35955), (612, 35720), (646, 33840), (680, 32148), (684, 31960), (705, 31008), (720, 30362), (752, 29070), (760, 28764), (765, 28576), (799, 27360), (816, 26790), (846, 25840), (855, 25568), (893, 24480), (912, 23970), (940, 23256), (969, 22560), (1020, 21432), (1128, 19380), (1140, 19176), (1224, 17860), (1292, 16920), (1360, 16074), (1368, 15980), (1410, 15504), (1440, 15181), (1504, 14535), (1520, 14382), (1530, 14288), (1598, 13680), (1615, 13536), (1632, 13395), (1692, 12920), (1710, 12784), (1786, 12240), (1824, 11985), (1880, 11628), (1938, 11280), (2040, 10716), (2115, 10336), (2256, 9690), (2280, 9588), (2397, 9120), (2448, 8930), (2584, 8460), (2679, 8160), (2720, 8037), (2736, 7990), (2820, 7752), (2907, 7520), (3040, 7191), (3060, 7144), (3196, 6840), (3230, 6768), (3384, 6460), (3420, 6392), (3572, 6120), (3760, 5814), (3876, 5640), (3995, 5472), (4080, 5358), (4230, 5168), (4465, 4896), (4512, 4845), (4560, 4794)]