20415460

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{233}}^1\times {\mathrm{337}}^1$

素因数の和:592

約数の個数: 48

約数和(自身を含む): 46506096

約数和(自身を除く): 26090636

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 233, 260, 337, 466, 674, 932, 1165, 1348, 1685, 2330, 3029, 3370, 4381, 4660, 6058, 6740, 8762, 12116, 15145, 17524, 21905, 30290, 43810, 60580, 78521, 87620, 157042, 314084, 392605, 785210, 1020773, 1570420, 2041546, 4083092, 5103865, 10207730, 20415460]

約数ペア:

[(1, 20415460), (2, 10207730), (4, 5103865), (5, 4083092), (10, 2041546), (13, 1570420), (20, 1020773), (26, 785210), (52, 392605), (65, 314084), (130, 157042), (233, 87620), (260, 78521), (337, 60580), (466, 43810), (674, 30290), (932, 21905), (1165, 17524), (1348, 15145), (1685, 12116), (2330, 8762), (3029, 6740), (3370, 6058), (4381, 4660)]