81278895

素因数分解:

$3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{235591}}^1$

素因数の和:235622

約数の個数: 16

約数和(自身を含む): 135700992

約数和(自身を除く): 54422097

約数列:

[1, 3, 5, 15, 23, 69, 115, 345, 235591, 706773, 1177955, 3533865, 5418593, 16255779, 27092965, 81278895]

約数ペア:

[(1, 81278895), (3, 27092965), (5, 16255779), (15, 5418593), (23, 3533865), (69, 1177955), (115, 706773), (345, 235591)]