81191200

素因数分解:

$2^5\times 5^2\times {\mathrm{101489}}^1$

素因数の和:101509

約数の個数: 36

約数和(自身を含む): 198209970

約数和(自身を除く): 117018770

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 80, 100, 160, 200, 400, 800, 101489, 202978, 405956, 507445, 811912, 1014890, 1623824, 2029780, 2537225, 3247648, 4059560, 5074450, 8119120, 10148900, 16238240, 20297800, 40595600, 81191200]

約数ペア:

[(1, 81191200), (2, 40595600), (4, 20297800), (5, 16238240), (8, 10148900), (10, 8119120), (16, 5074450), (20, 4059560), (25, 3247648), (32, 2537225), (40, 2029780), (50, 1623824), (80, 1014890), (100, 811912), (160, 507445), (200, 405956), (400, 202978), (800, 101489)]