20500060

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{181}}^1\times {\mathrm{809}}^1$

素因数の和:1006

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 29033060

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 181, 362, 724, 809, 905, 1267, 1618, 1810, 2534, 3236, 3620, 4045, 5068, 5663, 6335, 8090, 11326, 12670, 16180, 22652, 25340, 28315, 56630, 113260, 146429, 292858, 585716, 732145, 1025003, 1464290, 2050006, 2928580, 4100012, 5125015, 10250030, 20500060]

約数ペア:

[(1, 20500060), (2, 10250030), (4, 5125015), (5, 4100012), (7, 2928580), (10, 2050006), (14, 1464290), (20, 1025003), (28, 732145), (35, 585716), (70, 292858), (140, 146429), (181, 113260), (362, 56630), (724, 28315), (809, 25340), (905, 22652), (1267, 16180), (1618, 12670), (1810, 11326), (2534, 8090), (3236, 6335), (3620, 5663), (4045, 5068)]