561560

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{139}}^1$

素因数の和:251

約数の個数: 32

約数和(自身を含む): 1285200

約数和(自身を除く): 723640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 139, 202, 278, 404, 505, 556, 695, 808, 1010, 1112, 1390, 2020, 2780, 4040, 5560, 14039, 28078, 56156, 70195, 112312, 140390, 280780, 561560]

約数ペア:

[(1, 561560), (2, 280780), (4, 140390), (5, 112312), (8, 70195), (10, 56156), (20, 28078), (40, 14039), (101, 5560), (139, 4040), (202, 2780), (278, 2020), (404, 1390), (505, 1112), (556, 1010), (695, 808)]