30909140

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{21767}}^1$

素因数の和:21847

約数の個数: 24

約数和(自身を含む): 65826432

約数和(自身を除く): 34917292

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 21767, 43534, 87068, 108835, 217670, 435340, 1545457, 3090914, 6181828, 7727285, 15454570, 30909140]

約数ペア:

[(1, 30909140), (2, 15454570), (4, 7727285), (5, 6181828), (10, 3090914), (20, 1545457), (71, 435340), (142, 217670), (284, 108835), (355, 87068), (710, 43534), (1420, 21767)]