18655145

素因数分解:

$5^1\times {\mathrm{67}}^1\times {\mathrm{233}}^1\times {\mathrm{239}}^1$

素因数の和:544

約数の個数: 16

約数和(自身を含む): 22913280

約数和(自身を除く): 4258135

約数列:

[1, 5, 67, 233, 239, 335, 1165, 1195, 15611, 16013, 55687, 78055, 80065, 278435, 3731029, 18655145]

約数ペア:

[(1, 18655145), (5, 3731029), (67, 278435), (233, 80065), (239, 78055), (335, 55687), (1165, 16013), (1195, 15611)]