69911980

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{81293}}^1$

素因数の和:81345

約数の個数: 24

約数和(自身を含む): 150231312

約数和(自身を除く): 80319332

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 81293, 162586, 325172, 406465, 812930, 1625860, 3495599, 6991198, 13982396, 17477995, 34955990, 69911980]

約数ペア:

[(1, 69911980), (2, 34955990), (4, 17477995), (5, 13982396), (10, 6991198), (20, 3495599), (43, 1625860), (86, 812930), (172, 406465), (215, 325172), (430, 162586), (860, 81293)]