64149620

素因数分解:

$2^2\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{2473}}^1$

素因数の和:3779

約数の個数: 24

約数和(自身を含む): 134872584

約数和(自身を除く): 70722964

約数列:

[1, 2, 4, 5, 10, 20, 1297, 2473, 2594, 4946, 5188, 6485, 9892, 12365, 12970, 24730, 25940, 49460, 3207481, 6414962, 12829924, 16037405, 32074810, 64149620]

約数ペア:

[(1, 64149620), (2, 32074810), (4, 16037405), (5, 12829924), (10, 6414962), (20, 3207481), (1297, 49460), (2473, 25940), (2594, 24730), (4946, 12970), (5188, 12365), (6485, 9892)]