25439660

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{29581}}^1$

素因数の和:29633

約数の個数: 24

約数和(自身を含む): 54667536

約数和(自身を除く): 29227876

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 29581, 59162, 118324, 147905, 295810, 591620, 1271983, 2543966, 5087932, 6359915, 12719830, 25439660]

約数ペア:

[(1, 25439660), (2, 12719830), (4, 6359915), (5, 5087932), (10, 2543966), (20, 1271983), (43, 591620), (86, 295810), (172, 147905), (215, 118324), (430, 59162), (860, 29581)]