31888870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{245299}}^1$

素因数の和:245319

約数の個数: 16

約数和(自身を含む): 61815600

約数和(自身を除く): 29926730

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 245299, 490598, 1226495, 2452990, 3188887, 6377774, 15944435, 31888870]

約数ペア:

[(1, 31888870), (2, 15944435), (5, 6377774), (10, 3188887), (13, 2452990), (26, 1226495), (65, 490598), (130, 245299)]