20465515

素因数分解:

$5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{25423}}^1$

素因数の和:25458

約数の個数: 16

約数和(自身を含む): 29288448

約数和(自身を除く): 8822933

約数列:

[1, 5, 7, 23, 35, 115, 161, 805, 25423, 127115, 177961, 584729, 889805, 2923645, 4093103, 20465515]

約数ペア:

[(1, 20465515), (5, 4093103), (7, 2923645), (23, 889805), (35, 584729), (115, 177961), (161, 127115), (805, 25423)]