1520378545

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{21221}}^1$

素因数の和:21345

約数の個数: 32

約数和(自身を含む): 2200296960

約数和(自身を除く): 679918415

約数列:

[1, 5, 7, 23, 35, 89, 115, 161, 445, 623, 805, 2047, 3115, 10235, 14329, 21221, 71645, 106105, 148547, 488083, 742735, 1888669, 2440415, 3416581, 9443345, 13220683, 17082905, 43439387, 66103415, 217196935, 304075709, 1520378545]

約数ペア:

[(1, 1520378545), (5, 304075709), (7, 217196935), (23, 66103415), (35, 43439387), (89, 17082905), (115, 13220683), (161, 9443345), (445, 3416581), (623, 2440415), (805, 1888669), (2047, 742735), (3115, 488083), (10235, 148547), (14329, 106105), (21221, 71645)]