20405468176

素因数分解:

$2^4\times {\mathrm{3359}}^1\times {\mathrm{379679}}^1$

素因数の和:383046

約数の個数: 20

約数和(自身を含む): 39547468800

約数和(自身を除く): 19142000624

約数列:

[1, 2, 4, 8, 16, 3359, 6718, 13436, 26872, 53744, 379679, 759358, 1518716, 3037432, 6074864, 1275341761, 2550683522, 5101367044, 10202734088, 20405468176]

約数ペア:

[(1, 20405468176), (2, 10202734088), (4, 5101367044), (8, 2550683522), (16, 1275341761), (3359, 6074864), (6718, 3037432), (13436, 1518716), (26872, 759358), (53744, 379679)]