20479996225

素因数分解:

$5^2\times {\mathrm{13}}^1\times {\mathrm{383}}^1\times {\mathrm{164531}}^1$

素因数の和:164937

約数の個数: 24

約数和(自身を含む): 27420244992

約数和(自身を除く): 6940248767

約数列:

[1, 5, 13, 25, 65, 325, 383, 1915, 4979, 9575, 24895, 124475, 164531, 822655, 2138903, 4113275, 10694515, 53472575, 63015373, 315076865, 819199849, 1575384325, 4095999245, 20479996225]

約数ペア:

[(1, 20479996225), (5, 4095999245), (13, 1575384325), (25, 819199849), (65, 315076865), (325, 63015373), (383, 53472575), (1915, 10694515), (4979, 4113275), (9575, 2138903), (24895, 822655), (124475, 164531)]