18212275

素因数分解:

$5^2\times {\mathrm{67}}^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1$

素因数の和:291

約数の個数: 24

約数和(自身を含む): 23373504

約数和(自身を除く): 5161229

約数列:

[1, 5, 25, 67, 83, 131, 335, 415, 655, 1675, 2075, 3275, 5561, 8777, 10873, 27805, 43885, 54365, 139025, 219425, 271825, 728491, 3642455, 18212275]

約数ペア:

[(1, 18212275), (5, 3642455), (25, 728491), (67, 271825), (83, 219425), (131, 139025), (335, 54365), (415, 43885), (655, 27805), (1675, 10873), (2075, 8777), (3275, 5561)]