77868400

素因数分解:

$2^4\times 5^2\times {\mathrm{194671}}^1$

素因数の和:194689

約数の個数: 30

約数和(自身を含む): 187079792

約数和(自身を除く): 109211392

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 194671, 389342, 778684, 973355, 1557368, 1946710, 3114736, 3893420, 4866775, 7786840, 9733550, 15573680, 19467100, 38934200, 77868400]

約数ペア:

[(1, 77868400), (2, 38934200), (4, 19467100), (5, 15573680), (8, 9733550), (10, 7786840), (16, 4866775), (20, 3893420), (25, 3114736), (40, 1946710), (50, 1557368), (80, 973355), (100, 778684), (200, 389342), (400, 194671)]