398049335

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{21269}}^1$

素因数の和:21490

約数の個数: 16

約数和(自身を含む): 505375200

約数和(自身を除く): 107325865

約数列:

[1, 5, 19, 95, 197, 985, 3743, 18715, 21269, 106345, 404111, 2020555, 4189993, 20949965, 79609867, 398049335]

約数ペア:

[(1, 398049335), (5, 79609867), (19, 20949965), (95, 4189993), (197, 2020555), (985, 404111), (3743, 106345), (18715, 21269)]