87486528020

素因数分解:

$2^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{61610231}}^1$

素因数の和:61610311

約数の個数: 24

約数和(自身を含む): 186309341568

約数和(自身を除く): 98822813548

約数列:

[1, 2, 4, 5, 10, 20, 71, 142, 284, 355, 710, 1420, 61610231, 123220462, 246440924, 308051155, 616102310, 1232204620, 4374326401, 8748652802, 17497305604, 21871632005, 43743264010, 87486528020]

約数ペア:

[(1, 87486528020), (2, 43743264010), (4, 21871632005), (5, 17497305604), (10, 8748652802), (20, 4374326401), (71, 1232204620), (142, 616102310), (284, 308051155), (355, 246440924), (710, 123220462), (1420, 61610231)]