20430145

素因数分解:

$5^1\times {\mathrm{73}}^1\times {\mathrm{223}}^1\times {\mathrm{251}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 25062912

約数和(自身を除く): 4632767

約数列:

[1, 5, 73, 223, 251, 365, 1115, 1255, 16279, 18323, 55973, 81395, 91615, 279865, 4086029, 20430145]

約数ペア:

[(1, 20430145), (5, 4086029), (73, 279865), (223, 91615), (251, 81395), (365, 55973), (1115, 18323), (1255, 16279)]