90169580

素因数分解:

$2^2\times 5^1\times {\mathrm{1259}}^1\times {\mathrm{3581}}^1$

素因数の和:4849

約数の個数: 24

約数和(自身を含む): 189559440

約数和(自身を除く): 99389860

約数列:

[1, 2, 4, 5, 10, 20, 1259, 2518, 3581, 5036, 6295, 7162, 12590, 14324, 17905, 25180, 35810, 71620, 4508479, 9016958, 18033916, 22542395, 45084790, 90169580]

約数ペア:

[(1, 90169580), (2, 45084790), (4, 22542395), (5, 18033916), (10, 9016958), (20, 4508479), (1259, 71620), (2518, 35810), (3581, 25180), (5036, 17905), (6295, 14324), (7162, 12590)]