20325340

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{3541}}^1$

素因数の和:3598

約数の個数: 48

約数和(自身を含む): 49984704

約数和(自身を除く): 29659364

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 3541, 5740, 7082, 14164, 17705, 24787, 35410, 49574, 70820, 99148, 123935, 145181, 247870, 290362, 495740, 580724, 725905, 1016267, 1451810, 2032534, 2903620, 4065068, 5081335, 10162670, 20325340]

約数ペア:

[(1, 20325340), (2, 10162670), (4, 5081335), (5, 4065068), (7, 2903620), (10, 2032534), (14, 1451810), (20, 1016267), (28, 725905), (35, 580724), (41, 495740), (70, 290362), (82, 247870), (140, 145181), (164, 123935), (205, 99148), (287, 70820), (410, 49574), (574, 35410), (820, 24787), (1148, 17705), (1435, 14164), (2870, 7082), (3541, 5740)]