39867640

素因数分解:

$2^3\times 5^1\times {\mathrm{857}}^1\times {\mathrm{1163}}^1$

素因数の和:2031

約数の個数: 32

約数和(自身を含む): 89884080

約数和(自身を除く): 50016440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 857, 1163, 1714, 2326, 3428, 4285, 4652, 5815, 6856, 8570, 9304, 11630, 17140, 23260, 34280, 46520, 996691, 1993382, 3986764, 4983455, 7973528, 9966910, 19933820, 39867640]

約数ペア:

[(1, 39867640), (2, 19933820), (4, 9966910), (5, 7973528), (8, 4983455), (10, 3986764), (20, 1993382), (40, 996691), (857, 46520), (1163, 34280), (1714, 23260), (2326, 17140), (3428, 11630), (4285, 9304), (4652, 8570), (5815, 6856)]