315048640

素因数分解:

$2^6\times 5^1\times {\mathrm{499}}^1\times {\mathrm{1973}}^1$

素因数の和:2489

約数の個数: 56

約数和(自身を含む): 752094000

約数和(自身を除く): 437045360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 499, 998, 1973, 1996, 2495, 3946, 3992, 4990, 7892, 7984, 9865, 9980, 15784, 15968, 19730, 19960, 31568, 31936, 39460, 39920, 63136, 78920, 79840, 126272, 157840, 159680, 315680, 631360, 984527, 1969054, 3938108, 4922635, 7876216, 9845270, 15752432, 19690540, 31504864, 39381080, 63009728, 78762160, 157524320, 315048640]

約数ペア:

[(1, 315048640), (2, 157524320), (4, 78762160), (5, 63009728), (8, 39381080), (10, 31504864), (16, 19690540), (20, 15752432), (32, 9845270), (40, 7876216), (64, 4922635), (80, 3938108), (160, 1969054), (320, 984527), (499, 631360), (998, 315680), (1973, 159680), (1996, 157840), (2495, 126272), (3946, 79840), (3992, 78920), (4990, 63136), (7892, 39920), (7984, 39460), (9865, 31936), (9980, 31568), (15784, 19960), (15968, 19730)]