20797415080

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39995029}}^1$

素因数の和:39995053

約数の個数: 32

約数和(自身を含む): 50393737800

約数和(自身を除く): 29596322720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39995029, 79990058, 159980116, 199975145, 319960232, 399950290, 519935377, 799900580, 1039870754, 1599801160, 2079741508, 2599676885, 4159483016, 5199353770, 10398707540, 20797415080]

約数ペア:

[(1, 20797415080), (2, 10398707540), (4, 5199353770), (5, 4159483016), (8, 2599676885), (10, 2079741508), (13, 1599801160), (20, 1039870754), (26, 799900580), (40, 519935377), (52, 399950290), (65, 319960232), (104, 199975145), (130, 159980116), (260, 79990058), (520, 39995029)]