391040416

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{940001}}^1$

素因数の和:940024

約数の個数: 24

約数和(自身を含む): 829081764

約数和(自身を除く): 438041348

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 104, 208, 416, 940001, 1880002, 3760004, 7520008, 12220013, 15040016, 24440026, 30080032, 48880052, 97760104, 195520208, 391040416]

約数ペア:

[(1, 391040416), (2, 195520208), (4, 97760104), (8, 48880052), (13, 30080032), (16, 24440026), (26, 15040016), (32, 12220013), (52, 7520008), (104, 3760004), (208, 1880002), (416, 940001)]