25390118

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{499}}^1$

素因数の和:636

約数の個数: 32

約数和(自身を含む): 43680000

約数和(自身を除く): 18289882

約数列:

[1, 2, 13, 19, 26, 38, 103, 206, 247, 494, 499, 998, 1339, 1957, 2678, 3914, 6487, 9481, 12974, 18962, 25441, 50882, 51397, 102794, 123253, 246506, 668161, 976543, 1336322, 1953086, 12695059, 25390118]

約数ペア:

[(1, 25390118), (2, 12695059), (13, 1953086), (19, 1336322), (26, 976543), (38, 668161), (103, 246506), (206, 123253), (247, 102794), (494, 51397), (499, 50882), (998, 25441), (1339, 18962), (1957, 12974), (2678, 9481), (3914, 6487)]