257788680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{107}}^1\times {\mathrm{1181}}^1$

素因数の和:1319

約数の個数: 128

約数和(自身を含む): 827210880

約数和(自身を除く): 569422200

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 107, 120, 136, 170, 204, 214, 255, 321, 340, 408, 428, 510, 535, 642, 680, 856, 1020, 1070, 1181, 1284, 1605, 1819, 2040, 2140, 2362, 2568, 3210, 3543, 3638, 4280, 4724, 5457, 5905, 6420, 7086, 7276, 9095, 9448, 10914, 11810, 12840, 14172, 14552, 17715, 18190, 20077, 21828, 23620, 27285, 28344, 35430, 36380, 40154, 43656, 47240, 54570, 60231, 70860, 72760, 80308, 100385, 109140, 120462, 126367, 141720, 160616, 200770, 218280, 240924, 252734, 301155, 379101, 401540, 481848, 505468, 602310, 631835, 758202, 803080, 1010936, 1204620, 1263670, 1516404, 1895505, 2148239, 2409240, 2527340, 3032808, 3791010, 4296478, 5054680, 6444717, 7582020, 8592956, 10741195, 12889434, 15164040, 17185912, 21482390, 25778868, 32223585, 42964780, 51557736, 64447170, 85929560, 128894340, 257788680]

約数ペア:

[(1, 257788680), (2, 128894340), (3, 85929560), (4, 64447170), (5, 51557736), (6, 42964780), (8, 32223585), (10, 25778868), (12, 21482390), (15, 17185912), (17, 15164040), (20, 12889434), (24, 10741195), (30, 8592956), (34, 7582020), (40, 6444717), (51, 5054680), (60, 4296478), (68, 3791010), (85, 3032808), (102, 2527340), (107, 2409240), (120, 2148239), (136, 1895505), (170, 1516404), (204, 1263670), (214, 1204620), (255, 1010936), (321, 803080), (340, 758202), (408, 631835), (428, 602310), (510, 505468), (535, 481848), (642, 401540), (680, 379101), (856, 301155), (1020, 252734), (1070, 240924), (1181, 218280), (1284, 200770), (1605, 160616), (1819, 141720), (2040, 126367), (2140, 120462), (2362, 109140), (2568, 100385), (3210, 80308), (3543, 72760), (3638, 70860), (4280, 60231), (4724, 54570), (5457, 47240), (5905, 43656), (6420, 40154), (7086, 36380), (7276, 35430), (9095, 28344), (9448, 27285), (10914, 23620), (11810, 21828), (12840, 20077), (14172, 18190), (14552, 17715)]