389778454

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{1997}}^1\times {\mathrm{7507}}^1$

素因数の和:9519

約数の個数: 16

約数和(自身を含む): 630041328

約数和(自身を除く): 240262874

約数列:

[1, 2, 13, 26, 1997, 3994, 7507, 15014, 25961, 51922, 97591, 195182, 14991479, 29982958, 194889227, 389778454]

約数ペア:

[(1, 389778454), (2, 194889227), (13, 29982958), (26, 14991479), (1997, 195182), (3994, 97591), (7507, 51922), (15014, 25961)]