90765980

素因数分解:

$2^2\times 5^1\times {\mathrm{269}}^1\times {\mathrm{16871}}^1$

素因数の和:17149

約数の個数: 24

約数和(自身を含む): 191328480

約数和(自身を除く): 100562500

約数列:

[1, 2, 4, 5, 10, 20, 269, 538, 1076, 1345, 2690, 5380, 16871, 33742, 67484, 84355, 168710, 337420, 4538299, 9076598, 18153196, 22691495, 45382990, 90765980]

約数ペア:

[(1, 90765980), (2, 45382990), (4, 22691495), (5, 18153196), (10, 9076598), (20, 4538299), (269, 337420), (538, 168710), (1076, 84355), (1345, 67484), (2690, 33742), (5380, 16871)]