7897420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{9631}}^1$

素因数の和:9681

約数の個数: 24

約数和(自身を含む): 16990848

約数和(自身を除く): 9093428

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 9631, 19262, 38524, 48155, 96310, 192620, 394871, 789742, 1579484, 1974355, 3948710, 7897420]

約数ペア:

[(1, 7897420), (2, 3948710), (4, 1974355), (5, 1579484), (10, 789742), (20, 394871), (41, 192620), (82, 96310), (164, 48155), (205, 38524), (410, 19262), (820, 9631)]