2780025

素因数分解:

$3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{367}}^1$

素因数の和:481

約数の個数: 24

約数和(自身を含む): 4654464

約数和(自身を除く): 1874439

約数列:

[1, 3, 5, 15, 25, 75, 101, 303, 367, 505, 1101, 1515, 1835, 2525, 5505, 7575, 9175, 27525, 37067, 111201, 185335, 556005, 926675, 2780025]

約数ペア:

[(1, 2780025), (3, 926675), (5, 556005), (15, 185335), (25, 111201), (75, 37067), (101, 27525), (303, 9175), (367, 7575), (505, 5505), (1101, 2525), (1515, 1835)]