221388400

素因数分解:

$2^4\times 5^2\times {\mathrm{553471}}^1$

素因数の和:553489

約数の個数: 30

約数和(自身を含む): 531886592

約数和(自身を除く): 310498192

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 553471, 1106942, 2213884, 2767355, 4427768, 5534710, 8855536, 11069420, 13836775, 22138840, 27673550, 44277680, 55347100, 110694200, 221388400]

約数ペア:

[(1, 221388400), (2, 110694200), (4, 55347100), (5, 44277680), (8, 27673550), (10, 22138840), (16, 13836775), (20, 11069420), (25, 8855536), (40, 5534710), (50, 4427768), (80, 2767355), (100, 2213884), (200, 1106942), (400, 553471)]