40905020

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{157327}}^1$

素因数の和:157349

約数の個数: 24

約数和(自身を含む): 92508864

約数和(自身を除く): 51603844

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 157327, 314654, 629308, 786635, 1573270, 2045251, 3146540, 4090502, 8181004, 10226255, 20452510, 40905020]

約数ペア:

[(1, 40905020), (2, 20452510), (4, 10226255), (5, 8181004), (10, 4090502), (13, 3146540), (20, 2045251), (26, 1573270), (52, 786635), (65, 629308), (130, 314654), (260, 157327)]