20198465

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{409}}^1$

素因数の和:521

約数の個数: 32

約数和(自身を含む): 29756160

約数和(自身を除く): 9557695

約数列:

[1, 5, 7, 17, 35, 83, 85, 119, 409, 415, 581, 595, 1411, 2045, 2863, 2905, 6953, 7055, 9877, 14315, 33947, 34765, 48671, 49385, 169735, 237629, 243355, 577099, 1188145, 2885495, 4039693, 20198465]

約数ペア:

[(1, 20198465), (5, 4039693), (7, 2885495), (17, 1188145), (35, 577099), (83, 243355), (85, 237629), (119, 169735), (409, 49385), (415, 48671), (581, 34765), (595, 33947), (1411, 14315), (2045, 9877), (2863, 7055), (2905, 6953)]