389621740

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{172399}}^1$

素因数の和:172521

約数の個数: 24

約数和(自身を含む): 825451200

約数和(自身を除く): 435829460

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 172399, 344798, 689596, 861995, 1723990, 3447980, 19481087, 38962174, 77924348, 97405435, 194810870, 389621740]

約数ペア:

[(1, 389621740), (2, 194810870), (4, 97405435), (5, 77924348), (10, 38962174), (20, 19481087), (113, 3447980), (226, 1723990), (452, 861995), (565, 689596), (1130, 344798), (2260, 172399)]