904442920

素因数分解:

$2^3\times 5^1\times {\mathrm{89}}^1\times {\mathrm{239}}^1\times {\mathrm{1063}}^1$

素因数の和:1402

約数の個数: 64

約数和(自身を含む): 2068416000

約数和(自身を除く): 1163973080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 89, 178, 239, 356, 445, 478, 712, 890, 956, 1063, 1195, 1780, 1912, 2126, 2390, 3560, 4252, 4780, 5315, 8504, 9560, 10630, 21260, 21271, 42520, 42542, 85084, 94607, 106355, 170168, 189214, 212710, 254057, 378428, 425420, 473035, 508114, 756856, 850840, 946070, 1016228, 1270285, 1892140, 2032456, 2540570, 3784280, 5081140, 10162280, 22611073, 45222146, 90444292, 113055365, 180888584, 226110730, 452221460, 904442920]

約数ペア:

[(1, 904442920), (2, 452221460), (4, 226110730), (5, 180888584), (8, 113055365), (10, 90444292), (20, 45222146), (40, 22611073), (89, 10162280), (178, 5081140), (239, 3784280), (356, 2540570), (445, 2032456), (478, 1892140), (712, 1270285), (890, 1016228), (956, 946070), (1063, 850840), (1195, 756856), (1780, 508114), (1912, 473035), (2126, 425420), (2390, 378428), (3560, 254057), (4252, 212710), (4780, 189214), (5315, 170168), (8504, 106355), (9560, 94607), (10630, 85084), (21260, 42542), (21271, 42520)]