131120920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{468289}}^1$

素因数の和:468307

約数の個数: 32

約数和(自身を含む): 337168800

約数和(自身を除く): 206047880

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 468289, 936578, 1873156, 2341445, 3278023, 3746312, 4682890, 6556046, 9365780, 13112092, 16390115, 18731560, 26224184, 32780230, 65560460, 131120920]

約数ペア:

[(1, 131120920), (2, 65560460), (4, 32780230), (5, 26224184), (7, 18731560), (8, 16390115), (10, 13112092), (14, 9365780), (20, 6556046), (28, 4682890), (35, 3746312), (40, 3278023), (56, 2341445), (70, 1873156), (140, 936578), (280, 468289)]