80991605

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{97}}^1\times {\mathrm{4073}}^1$

素因数の和:4216

約数の個数: 16

約数和(自身を含む): 100611504

約数和(自身を除く): 19619899

約数列:

[1, 5, 41, 97, 205, 485, 3977, 4073, 19885, 20365, 166993, 395081, 834965, 1975405, 16198321, 80991605]

約数ペア:

[(1, 80991605), (5, 16198321), (41, 1975405), (97, 834965), (205, 395081), (485, 166993), (3977, 20365), (4073, 19885)]