13661240

素因数分解:

$2^3\times 5^1\times {\mathrm{239}}^1\times {\mathrm{1429}}^1$

素因数の和:1679

約数の個数: 32

約数和(自身を含む): 30888000

約数和(自身を除く): 17226760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 239, 478, 956, 1195, 1429, 1912, 2390, 2858, 4780, 5716, 7145, 9560, 11432, 14290, 28580, 57160, 341531, 683062, 1366124, 1707655, 2732248, 3415310, 6830620, 13661240]

約数ペア:

[(1, 13661240), (2, 6830620), (4, 3415310), (5, 2732248), (8, 1707655), (10, 1366124), (20, 683062), (40, 341531), (239, 57160), (478, 28580), (956, 14290), (1195, 11432), (1429, 9560), (1912, 7145), (2390, 5716), (2858, 4780)]