20395885

素因数分解:

$5^1\times {\mathrm{47}}^1\times {\mathrm{229}}^1\times {\mathrm{379}}^1$

素因数の和:660

約数の個数: 16

約数和(自身を含む): 25171200

約数和(自身を除く): 4775315

約数列:

[1, 5, 47, 229, 235, 379, 1145, 1895, 10763, 17813, 53815, 86791, 89065, 433955, 4079177, 20395885]

約数ペア:

[(1, 20395885), (5, 4079177), (47, 433955), (229, 89065), (235, 86791), (379, 53815), (1145, 17813), (1895, 10763)]