123287080

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{440311}}^1$

素因数の和:440329

約数の個数: 32

約数和(自身を含む): 317024640

約数和(自身を除く): 193737560

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 440311, 880622, 1761244, 2201555, 3082177, 3522488, 4403110, 6164354, 8806220, 12328708, 15410885, 17612440, 24657416, 30821770, 61643540, 123287080]

約数ペア:

[(1, 123287080), (2, 61643540), (4, 30821770), (5, 24657416), (7, 17612440), (8, 15410885), (10, 12328708), (14, 8806220), (20, 6164354), (28, 4403110), (35, 3522488), (40, 3082177), (56, 2201555), (70, 1761244), (140, 880622), (280, 440311)]