78835640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{151607}}^1$

素因数の和:151631

約数の個数: 32

約数和(自身を含む): 191026080

約数和(自身を除く): 112190440

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 151607, 303214, 606428, 758035, 1212856, 1516070, 1970891, 3032140, 3941782, 6064280, 7883564, 9854455, 15767128, 19708910, 39417820, 78835640]

約数ペア:

[(1, 78835640), (2, 39417820), (4, 19708910), (5, 15767128), (8, 9854455), (10, 7883564), (13, 6064280), (20, 3941782), (26, 3032140), (40, 1970891), (52, 1516070), (65, 1212856), (104, 758035), (130, 606428), (260, 303214), (520, 151607)]