137668400

素因数分解:

$2^4\times 5^2\times {\mathrm{344171}}^1$

素因数の和:344189

約数の個数: 30

約数和(自身を含む): 330749292

約数和(自身を除く): 193080892

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 344171, 688342, 1376684, 1720855, 2753368, 3441710, 5506736, 6883420, 8604275, 13766840, 17208550, 27533680, 34417100, 68834200, 137668400]

約数ペア:

[(1, 137668400), (2, 68834200), (4, 34417100), (5, 27533680), (8, 17208550), (10, 13766840), (16, 8604275), (20, 6883420), (25, 5506736), (40, 3441710), (50, 2753368), (80, 1720855), (100, 1376684), (200, 688342), (400, 344171)]