15865640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{56663}}^1$

素因数の和:56681

約数の個数: 32

約数和(自身を含む): 40798080

約数和(自身を除く): 24932440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 56663, 113326, 226652, 283315, 396641, 453304, 566630, 793282, 1133260, 1586564, 1983205, 2266520, 3173128, 3966410, 7932820, 15865640]

約数ペア:

[(1, 15865640), (2, 7932820), (4, 3966410), (5, 3173128), (7, 2266520), (8, 1983205), (10, 1586564), (14, 1133260), (20, 793282), (28, 566630), (35, 453304), (40, 396641), (56, 283315), (70, 226652), (140, 113326), (280, 56663)]