8091620

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{421}}^1$

素因数の和:492

約数の個数: 36

約数和(自身を含む): 17599932

約数和(自身を除く): 9508312

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 421, 620, 842, 961, 1684, 1922, 2105, 3844, 4210, 4805, 8420, 9610, 13051, 19220, 26102, 52204, 65255, 130510, 261020, 404581, 809162, 1618324, 2022905, 4045810, 8091620]

約数ペア:

[(1, 8091620), (2, 4045810), (4, 2022905), (5, 1618324), (10, 809162), (20, 404581), (31, 261020), (62, 130510), (124, 65255), (155, 52204), (310, 26102), (421, 19220), (620, 13051), (842, 9610), (961, 8420), (1684, 4805), (1922, 4210), (2105, 3844)]