20051025

素因数分解:

$3^1\times 5^2\times {\mathrm{101}}^1\times {\mathrm{2647}}^1$

素因数の和:2761

約数の個数: 24

約数和(自身を含む): 33491904

約数和(自身を除く): 13440879

約数列:

[1, 3, 5, 15, 25, 75, 101, 303, 505, 1515, 2525, 2647, 7575, 7941, 13235, 39705, 66175, 198525, 267347, 802041, 1336735, 4010205, 6683675, 20051025]

約数ペア:

[(1, 20051025), (3, 6683675), (5, 4010205), (15, 1336735), (25, 802041), (75, 267347), (101, 198525), (303, 66175), (505, 39705), (1515, 13235), (2525, 7941), (2647, 7575)]