20320615

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25243}}^1$

素因数の和:25278

約数の個数: 16

約数和(自身を含む): 29081088

約数和(自身を除く): 8760473

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25243, 126215, 176701, 580589, 883505, 2902945, 4064123, 20320615]

約数ペア:

[(1, 20320615), (5, 4064123), (7, 2902945), (23, 883505), (35, 580589), (115, 176701), (161, 126215), (805, 25243)]