30896920

素因数分解:

$2^3\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5557}}^1$

素因数の和:5707

約数の個数: 32

約数和(自身を含む): 70030800

約数和(自身を除く): 39133880

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 139, 278, 556, 695, 1112, 1390, 2780, 5557, 5560, 11114, 22228, 27785, 44456, 55570, 111140, 222280, 772423, 1544846, 3089692, 3862115, 6179384, 7724230, 15448460, 30896920]

約数ペア:

[(1, 30896920), (2, 15448460), (4, 7724230), (5, 6179384), (8, 3862115), (10, 3089692), (20, 1544846), (40, 772423), (139, 222280), (278, 111140), (556, 55570), (695, 44456), (1112, 27785), (1390, 22228), (2780, 11114), (5557, 5560)]