25318520

素因数分解:

$2^3\times 5^1\times {\mathrm{109}}^1\times {\mathrm{5807}}^1$

素因数の和:5927

約数の個数: 32

約数和(自身を含む): 57499200

約数和(自身を除く): 32180680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 109, 218, 436, 545, 872, 1090, 2180, 4360, 5807, 11614, 23228, 29035, 46456, 58070, 116140, 232280, 632963, 1265926, 2531852, 3164815, 5063704, 6329630, 12659260, 25318520]

約数ペア:

[(1, 25318520), (2, 12659260), (4, 6329630), (5, 5063704), (8, 3164815), (10, 2531852), (20, 1265926), (40, 632963), (109, 232280), (218, 116140), (436, 58070), (545, 46456), (872, 29035), (1090, 23228), (2180, 11614), (4360, 5807)]