3153680

素因数分解:

$2^4\times 5^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:591

約数の個数: 40

約数和(自身を含む): 7440000

約数和(自身を除く): 4286320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 79, 80, 158, 316, 395, 499, 632, 790, 998, 1264, 1580, 1996, 2495, 3160, 3992, 4990, 6320, 7984, 9980, 19960, 39421, 39920, 78842, 157684, 197105, 315368, 394210, 630736, 788420, 1576840, 3153680]

約数ペア:

[(1, 3153680), (2, 1576840), (4, 788420), (5, 630736), (8, 394210), (10, 315368), (16, 197105), (20, 157684), (40, 78842), (79, 39920), (80, 39421), (158, 19960), (316, 9980), (395, 7984), (499, 6320), (632, 4990), (790, 3992), (998, 3160), (1264, 2495), (1580, 1996)]