78649324

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{20719}}^1$

素因数の和:20809

約数の個数: 24

約数和(自身を含む): 150261440

約数和(自身を除く): 71612116

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 20719, 41438, 82876, 269347, 538694, 1077388, 1512487, 3024974, 6049948, 19662331, 39324662, 78649324]

約数ペア:

[(1, 78649324), (2, 39324662), (4, 19662331), (13, 6049948), (26, 3024974), (52, 1512487), (73, 1077388), (146, 538694), (292, 269347), (949, 82876), (1898, 41438), (3796, 20719)]