40856720

素因数分解:

$2^4\times 5^1\times {\mathrm{510709}}^1$

素因数の和:510722

約数の個数: 20

約数和(自身を含む): 94992060

約数和(自身を除く): 54135340

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 510709, 1021418, 2042836, 2553545, 4085672, 5107090, 8171344, 10214180, 20428360, 40856720]

約数ペア:

[(1, 40856720), (2, 20428360), (4, 10214180), (5, 8171344), (8, 5107090), (10, 4085672), (16, 2553545), (20, 2042836), (40, 1021418), (80, 510709)]