261780120

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{1117}}^1$

素因数の和:1175

約数の個数: 256

約数和(自身を含む): 1030348800

約数和(自身を除く): 768568680

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 31, 35, 36, 40, 42, 45, 54, 56, 60, 62, 63, 70, 72, 84, 90, 93, 105, 108, 120, 124, 126, 135, 140, 155, 168, 180, 186, 189, 210, 216, 217, 248, 252, 270, 279, 280, 310, 315, 360, 372, 378, 420, 434, 465, 504, 540, 558, 620, 630, 651, 744, 756, 837, 840, 868, 930, 945, 1080, 1085, 1116, 1117, 1240, 1260, 1302, 1395, 1512, 1674, 1736, 1860, 1890, 1953, 2170, 2232, 2234, 2520, 2604, 2790, 3255, 3348, 3351, 3720, 3780, 3906, 4185, 4340, 4468, 5208, 5580, 5585, 5859, 6510, 6696, 6702, 7560, 7812, 7819, 8370, 8680, 8936, 9765, 10053, 11160, 11170, 11718, 13020, 13404, 15624, 15638, 16740, 16755, 19530, 20106, 22340, 23436, 23457, 26040, 26808, 29295, 30159, 31276, 33480, 33510, 34627, 39060, 39095, 40212, 44680, 46872, 46914, 50265, 58590, 60318, 62552, 67020, 69254, 70371, 78120, 78190, 80424, 93828, 100530, 103881, 117180, 117285, 120636, 134040, 138508, 140742, 150795, 156380, 173135, 187656, 201060, 207762, 211113, 234360, 234570, 241272, 242389, 277016, 281484, 301590, 311643, 312760, 346270, 351855, 402120, 415524, 422226, 469140, 484778, 519405, 562968, 603180, 623286, 692540, 703710, 727167, 831048, 844452, 934929, 938280, 969556, 1038810, 1055565, 1206360, 1211945, 1246572, 1385080, 1407420, 1454334, 1558215, 1688904, 1869858, 1939112, 2077620, 2111130, 2181501, 2423890, 2493144, 2814840, 2908668, 3116430, 3635835, 3739716, 4155240, 4222260, 4363002, 4674645, 4847780, 5817336, 6232860, 6544503, 7271670, 7479432, 8444520, 8726004, 9349290, 9695560, 10907505, 12465720, 13089006, 14543340, 17452008, 18698580, 21815010, 26178012, 29086680, 32722515, 37397160, 43630020, 52356024, 65445030, 87260040, 130890060, 261780120]

約数ペア:

[(1, 261780120), (2, 130890060), (3, 87260040), (4, 65445030), (5, 52356024), (6, 43630020), (7, 37397160), (8, 32722515), (9, 29086680), (10, 26178012), (12, 21815010), (14, 18698580), (15, 17452008), (18, 14543340), (20, 13089006), (21, 12465720), (24, 10907505), (27, 9695560), (28, 9349290), (30, 8726004), (31, 8444520), (35, 7479432), (36, 7271670), (40, 6544503), (42, 6232860), (45, 5817336), (54, 4847780), (56, 4674645), (60, 4363002), (62, 4222260), (63, 4155240), (70, 3739716), (72, 3635835), (84, 3116430), (90, 2908668), (93, 2814840), (105, 2493144), (108, 2423890), (120, 2181501), (124, 2111130), (126, 2077620), (135, 1939112), (140, 1869858), (155, 1688904), (168, 1558215), (180, 1454334), (186, 1407420), (189, 1385080), (210, 1246572), (216, 1211945), (217, 1206360), (248, 1055565), (252, 1038810), (270, 969556), (279, 938280), (280, 934929), (310, 844452), (315, 831048), (360, 727167), (372, 703710), (378, 692540), (420, 623286), (434, 603180), (465, 562968), (504, 519405), (540, 484778), (558, 469140), (620, 422226), (630, 415524), (651, 402120), (744, 351855), (756, 346270), (837, 312760), (840, 311643), (868, 301590), (930, 281484), (945, 277016), (1080, 242389), (1085, 241272), (1116, 234570), (1117, 234360), (1240, 211113), (1260, 207762), (1302, 201060), (1395, 187656), (1512, 173135), (1674, 156380), (1736, 150795), (1860, 140742), (1890, 138508), (1953, 134040), (2170, 120636), (2232, 117285), (2234, 117180), (2520, 103881), (2604, 100530), (2790, 93828), (3255, 80424), (3348, 78190), (3351, 78120), (3720, 70371), (3780, 69254), (3906, 67020), (4185, 62552), (4340, 60318), (4468, 58590), (5208, 50265), (5580, 46914), (5585, 46872), (5859, 44680), (6510, 40212), (6696, 39095), (6702, 39060), (7560, 34627), (7812, 33510), (7819, 33480), (8370, 31276), (8680, 30159), (8936, 29295), (9765, 26808), (10053, 26040), (11160, 23457), (11170, 23436), (11718, 22340), (13020, 20106), (13404, 19530), (15624, 16755), (15638, 16740)]