20735367640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39875707}}^1$

素因数の和:39875731

約数の個数: 32

約数和(自身を含む): 50243392080

約数和(自身を除く): 29508024440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39875707, 79751414, 159502828, 199378535, 319005656, 398757070, 518384191, 797514140, 1036768382, 1595028280, 2073536764, 2591920955, 4147073528, 5183841910, 10367683820, 20735367640]

約数ペア:

[(1, 20735367640), (2, 10367683820), (4, 5183841910), (5, 4147073528), (8, 2591920955), (10, 2073536764), (13, 1595028280), (20, 1036768382), (26, 797514140), (40, 518384191), (52, 398757070), (65, 319005656), (104, 199378535), (130, 159502828), (260, 79751414), (520, 39875707)]