400987005

素因数分解:

$3^1\times 5^1\times {\mathrm{1297}}^1\times {\mathrm{20611}}^1$

素因数の和:21916

約数の個数: 16

約数和(自身を含む): 642105024

約数和(自身を除く): 241118019

約数列:

[1, 3, 5, 15, 1297, 3891, 6485, 19455, 20611, 61833, 103055, 309165, 26732467, 80197401, 133662335, 400987005]

約数ペア:

[(1, 400987005), (3, 133662335), (5, 80197401), (15, 26732467), (1297, 309165), (3891, 103055), (6485, 61833), (19455, 20611)]