208278145

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{20231}}^1$

素因数の和:20336

約数の個数: 16

約数和(自身を含む): 262206720

約数和(自身を除く): 53928575

約数列:

[1, 5, 29, 71, 145, 355, 2059, 10295, 20231, 101155, 586699, 1436401, 2933495, 7182005, 41655629, 208278145]

約数ペア:

[(1, 208278145), (5, 41655629), (29, 7182005), (71, 2933495), (145, 1436401), (355, 586699), (2059, 101155), (10295, 20231)]