40458100

素因数分解:

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

素因数の和:497

約数の個数: 54

約数和(自身を含む): 90932982

約数和(自身を除く): 50474882

約数列:

[1, 2, 4, 5, 10, 20, 25, 31, 50, 62, 100, 124, 155, 310, 421, 620, 775, 842, 961, 1550, 1684, 1922, 2105, 3100, 3844, 4210, 4805, 8420, 9610, 10525, 13051, 19220, 21050, 24025, 26102, 42100, 48050, 52204, 65255, 96100, 130510, 261020, 326275, 404581, 652550, 809162, 1305100, 1618324, 2022905, 4045810, 8091620, 10114525, 20229050, 40458100]

約数ペア:

[(1, 40458100), (2, 20229050), (4, 10114525), (5, 8091620), (10, 4045810), (20, 2022905), (25, 1618324), (31, 1305100), (50, 809162), (62, 652550), (100, 404581), (124, 326275), (155, 261020), (310, 130510), (421, 96100), (620, 65255), (775, 52204), (842, 48050), (961, 42100), (1550, 26102), (1684, 24025), (1922, 21050), (2105, 19220), (3100, 13051), (3844, 10525), (4210, 9610), (4805, 8420)]