20197420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{24631}}^1$

素因数の和:24681

約数の個数: 24

約数和(自身を含む): 43450848

約数和(自身を除く): 23253428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 24631, 49262, 98524, 123155, 246310, 492620, 1009871, 2019742, 4039484, 5049355, 10098710, 20197420]

約数ペア:

[(1, 20197420), (2, 10098710), (4, 5049355), (5, 4039484), (10, 2019742), (20, 1009871), (41, 492620), (82, 246310), (164, 123155), (205, 98524), (410, 49262), (820, 24631)]