64590520

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{11617}}^1$

素因数の和:11767

約数の個数: 32

約数和(自身を含む): 146386800

約数和(自身を除く): 81796280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5560, 11617, 23234, 46468, 58085, 92936, 116170, 232340, 464680, 1614763, 3229526, 6459052, 8073815, 12918104, 16147630, 32295260, 64590520]

約数ペア:

[(1, 64590520), (2, 32295260), (4, 16147630), (5, 12918104), (8, 8073815), (10, 6459052), (20, 3229526), (40, 1614763), (139, 464680), (278, 232340), (556, 116170), (695, 92936), (1112, 58085), (1390, 46468), (2780, 23234), (5560, 11617)]