40640008

素因数分解:

$2^3\times {\mathrm{31}}^1\times {\mathrm{163871}}^1$

素因数の和:163908

約数の個数: 16

約数和(自身を含む): 78658560

約数和(自身を除く): 38018552

約数列:

[1, 2, 4, 8, 31, 62, 124, 248, 163871, 327742, 655484, 1310968, 5080001, 10160002, 20320004, 40640008]

約数ペア:

[(1, 40640008), (2, 20320004), (4, 10160002), (8, 5080001), (31, 1310968), (62, 655484), (124, 327742), (248, 163871)]