20106520

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{71809}}^1$

素因数の和:71827

約数の個数: 32

約数和(自身を含む): 51703200

約数和(自身を除く): 31596680

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 71809, 143618, 287236, 359045, 502663, 574472, 718090, 1005326, 1436180, 2010652, 2513315, 2872360, 4021304, 5026630, 10053260, 20106520]

約数ペア:

[(1, 20106520), (2, 10053260), (4, 5026630), (5, 4021304), (7, 2872360), (8, 2513315), (10, 2010652), (14, 1436180), (20, 1005326), (28, 718090), (35, 574472), (40, 502663), (56, 359045), (70, 287236), (140, 143618), (280, 71809)]