20900490

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{53591}}^1$

素因数の和:53614

約数の個数: 32

約数和(自身を含む): 54020736

約数和(自身を除く): 33120246

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 65, 78, 130, 195, 390, 53591, 107182, 160773, 267955, 321546, 535910, 696683, 803865, 1393366, 1607730, 2090049, 3483415, 4180098, 6966830, 10450245, 20900490]

約数ペア:

[(1, 20900490), (2, 10450245), (3, 6966830), (5, 4180098), (6, 3483415), (10, 2090049), (13, 1607730), (15, 1393366), (26, 803865), (30, 696683), (39, 535910), (65, 321546), (78, 267955), (130, 160773), (195, 107182), (390, 53591)]