29959960

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{499}}^1$

素因数の和:608

約数の個数: 64

約数和(自身を含む): 72000000

約数和(自身を除く): 42040040

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 79, 95, 152, 158, 190, 316, 380, 395, 499, 632, 760, 790, 998, 1501, 1580, 1996, 2495, 3002, 3160, 3992, 4990, 6004, 7505, 9481, 9980, 12008, 15010, 18962, 19960, 30020, 37924, 39421, 47405, 60040, 75848, 78842, 94810, 157684, 189620, 197105, 315368, 379240, 394210, 748999, 788420, 1497998, 1576840, 2995996, 3744995, 5991992, 7489990, 14979980, 29959960]

約数ペア:

[(1, 29959960), (2, 14979980), (4, 7489990), (5, 5991992), (8, 3744995), (10, 2995996), (19, 1576840), (20, 1497998), (38, 788420), (40, 748999), (76, 394210), (79, 379240), (95, 315368), (152, 197105), (158, 189620), (190, 157684), (316, 94810), (380, 78842), (395, 75848), (499, 60040), (632, 47405), (760, 39421), (790, 37924), (998, 30020), (1501, 19960), (1580, 18962), (1996, 15010), (2495, 12008), (3002, 9980), (3160, 9481), (3992, 7505), (4990, 6004)]