20256215

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25163}}^1$

素因数の和:25198

約数の個数: 16

約数和(自身を含む): 28988928

約数和(自身を除く): 8732713

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25163, 125815, 176141, 578749, 880705, 2893745, 4051243, 20256215]

約数ペア:

[(1, 20256215), (5, 4051243), (7, 2893745), (23, 880705), (35, 578749), (115, 176141), (161, 125815), (805, 25163)]