28397420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{34631}}^1$

素因数の和:34681

約数の個数: 24

約数和(自身を含む): 61090848

約数和(自身を除く): 32693428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 34631, 69262, 138524, 173155, 346310, 692620, 1419871, 2839742, 5679484, 7099355, 14198710, 28397420]

約数ペア:

[(1, 28397420), (2, 14198710), (4, 7099355), (5, 5679484), (10, 2839742), (20, 1419871), (41, 692620), (82, 346310), (164, 173155), (205, 138524), (410, 69262), (820, 34631)]