1228460

素因数分解:

$2^2\times 5^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:505

約数の個数: 24

約数和(自身を含む): 2600640

約数和(自身を除く): 1372180

約数列:

[1, 2, 4, 5, 10, 20, 239, 257, 478, 514, 956, 1028, 1195, 1285, 2390, 2570, 4780, 5140, 61423, 122846, 245692, 307115, 614230, 1228460]

約数ペア:

[(1, 1228460), (2, 614230), (4, 307115), (5, 245692), (10, 122846), (20, 61423), (239, 5140), (257, 4780), (478, 2570), (514, 2390), (956, 1285), (1028, 1195)]