80349340

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{97987}}^1$

素因数の和:98037

約数の個数: 24

約数和(自身を含む): 172850832

約数和(自身を除く): 92501492

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 97987, 195974, 391948, 489935, 979870, 1959740, 4017467, 8034934, 16069868, 20087335, 40174670, 80349340]

約数ペア:

[(1, 80349340), (2, 40174670), (4, 20087335), (5, 16069868), (10, 8034934), (20, 4017467), (41, 1959740), (82, 979870), (164, 489935), (205, 391948), (410, 195974), (820, 97987)]