18105640

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{64663}}^1$

素因数の和:64681

約数の個数: 32

約数和(自身を含む): 46558080

約数和(自身を除く): 28452440

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 64663, 129326, 258652, 323315, 452641, 517304, 646630, 905282, 1293260, 1810564, 2263205, 2586520, 3621128, 4526410, 9052820, 18105640]

約数ペア:

[(1, 18105640), (2, 9052820), (4, 4526410), (5, 3621128), (7, 2586520), (8, 2263205), (10, 1810564), (14, 1293260), (20, 905282), (28, 646630), (35, 517304), (40, 452641), (56, 323315), (70, 258652), (140, 129326), (280, 64663)]