68001080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{211}}^1\times {\mathrm{1151}}^1$

素因数の和:1380

約数の個数: 64

約数和(自身を含む): 175841280

約数和(自身を除く): 107840200

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 211, 280, 422, 844, 1055, 1151, 1477, 1688, 2110, 2302, 2954, 4220, 4604, 5755, 5908, 7385, 8057, 8440, 9208, 11510, 11816, 14770, 16114, 23020, 29540, 32228, 40285, 46040, 59080, 64456, 80570, 161140, 242861, 322280, 485722, 971444, 1214305, 1700027, 1942888, 2428610, 3400054, 4857220, 6800108, 8500135, 9714440, 13600216, 17000270, 34000540, 68001080]

約数ペア:

[(1, 68001080), (2, 34000540), (4, 17000270), (5, 13600216), (7, 9714440), (8, 8500135), (10, 6800108), (14, 4857220), (20, 3400054), (28, 2428610), (35, 1942888), (40, 1700027), (56, 1214305), (70, 971444), (140, 485722), (211, 322280), (280, 242861), (422, 161140), (844, 80570), (1055, 64456), (1151, 59080), (1477, 46040), (1688, 40285), (2110, 32228), (2302, 29540), (2954, 23020), (4220, 16114), (4604, 14770), (5755, 11816), (5908, 11510), (7385, 9208), (8057, 8440)]