18718330

素因数分解:

$2^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{431}}^1$

素因数の和:582

約数の個数: 32

約数和(自身を含む): 34898688

約数和(自身を除く): 16180358

約数列:

[1, 2, 5, 10, 43, 86, 101, 202, 215, 430, 431, 505, 862, 1010, 2155, 4310, 4343, 8686, 18533, 21715, 37066, 43430, 43531, 87062, 92665, 185330, 217655, 435310, 1871833, 3743666, 9359165, 18718330]

約数ペア:

[(1, 18718330), (2, 9359165), (5, 3743666), (10, 1871833), (43, 435310), (86, 217655), (101, 185330), (202, 92665), (215, 87062), (430, 43531), (431, 43430), (505, 37066), (862, 21715), (1010, 18533), (2155, 8686), (4310, 4343)]