306811820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{2191513}}^1$

素因数の和:2191529

約数の個数: 24

約数和(自身を含む): 736348704

約数和(自身を除く): 429536884

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 2191513, 4383026, 8766052, 10957565, 15340591, 21915130, 30681182, 43830260, 61362364, 76702955, 153405910, 306811820]

約数ペア:

[(1, 306811820), (2, 153405910), (4, 76702955), (5, 61362364), (7, 43830260), (10, 30681182), (14, 21915130), (20, 15340591), (28, 10957565), (35, 8766052), (70, 4383026), (140, 2191513)]