78638768

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{378071}}^1$

素因数の和:378092

約数の個数: 20

約数和(自身を含む): 164083248

約数和(自身を除く): 85444480

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 378071, 756142, 1512284, 3024568, 4914923, 6049136, 9829846, 19659692, 39319384, 78638768]

約数ペア:

[(1, 78638768), (2, 39319384), (4, 19659692), (8, 9829846), (13, 6049136), (16, 4914923), (26, 3024568), (52, 1512284), (104, 756142), (208, 378071)]