31021420

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{37831}}^1$

素因数の和:37881

約数の個数: 24

約数和(自身を含む): 66735648

約数和(自身を除く): 35714228

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 37831, 75662, 151324, 189155, 378310, 756620, 1551071, 3102142, 6204284, 7755355, 15510710, 31021420]

約数ペア:

[(1, 31021420), (2, 15510710), (4, 7755355), (5, 6204284), (10, 3102142), (20, 1551071), (41, 756620), (82, 378310), (164, 189155), (205, 151324), (410, 75662), (820, 37831)]