28697620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{204983}}^1$

素因数の和:204999

約数の個数: 24

約数和(自身を含む): 68874624

約数和(自身を除く): 40177004

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 204983, 409966, 819932, 1024915, 1434881, 2049830, 2869762, 4099660, 5739524, 7174405, 14348810, 28697620]

約数ペア:

[(1, 28697620), (2, 14348810), (4, 7174405), (5, 5739524), (7, 4099660), (10, 2869762), (14, 2049830), (20, 1434881), (28, 1024915), (35, 819932), (70, 409966), (140, 204983)]