68640416

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{165001}}^1$

素因数の和:165024

約数の個数: 24

約数和(自身を含む): 145531764

約数和(自身を除く): 76891348

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 165001, 330002, 660004, 1320008, 2145013, 2640016, 4290026, 5280032, 8580052, 17160104, 34320208, 68640416]

約数ペア:

[(1, 68640416), (2, 34320208), (4, 17160104), (8, 8580052), (13, 5280032), (16, 4290026), (26, 2640016), (32, 2145013), (52, 1320008), (104, 660004), (208, 330002), (416, 165001)]