15139480

素因数分解:

$2^3\times 5^1\times {\mathrm{311}}^1\times {\mathrm{1217}}^1$

素因数の和:1539

約数の個数: 32

約数和(自身を含む): 34201440

約数和(自身を除く): 19061960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 311, 622, 1217, 1244, 1555, 2434, 2488, 3110, 4868, 6085, 6220, 9736, 12170, 12440, 24340, 48680, 378487, 756974, 1513948, 1892435, 3027896, 3784870, 7569740, 15139480]

約数ペア:

[(1, 15139480), (2, 7569740), (4, 3784870), (5, 3027896), (8, 1892435), (10, 1513948), (20, 756974), (40, 378487), (311, 48680), (622, 24340), (1217, 12440), (1244, 12170), (1555, 9736), (2434, 6220), (2488, 6085), (3110, 4868)]