66756400

素因数分解:

$2^4\times 5^2\times {\mathrm{157}}^1\times {\mathrm{1063}}^1$

素因数の和:1238

約数の個数: 60

約数和(自身を含む): 161555632

約数和(自身を除く): 94799232

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 157, 200, 314, 400, 628, 785, 1063, 1256, 1570, 2126, 2512, 3140, 3925, 4252, 5315, 6280, 7850, 8504, 10630, 12560, 15700, 17008, 21260, 26575, 31400, 42520, 53150, 62800, 85040, 106300, 166891, 212600, 333782, 425200, 667564, 834455, 1335128, 1668910, 2670256, 3337820, 4172275, 6675640, 8344550, 13351280, 16689100, 33378200, 66756400]

約数ペア:

[(1, 66756400), (2, 33378200), (4, 16689100), (5, 13351280), (8, 8344550), (10, 6675640), (16, 4172275), (20, 3337820), (25, 2670256), (40, 1668910), (50, 1335128), (80, 834455), (100, 667564), (157, 425200), (200, 333782), (314, 212600), (400, 166891), (628, 106300), (785, 85040), (1063, 62800), (1256, 53150), (1570, 42520), (2126, 31400), (2512, 26575), (3140, 21260), (3925, 17008), (4252, 15700), (5315, 12560), (6280, 10630), (7850, 8504)]