2784740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19891}}^1$

素因数の和:19907

約数の個数: 24

約数和(自身を含む): 6683712

約数和(自身を除く): 3898972

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 19891, 39782, 79564, 99455, 139237, 198910, 278474, 397820, 556948, 696185, 1392370, 2784740]

約数ペア:

[(1, 2784740), (2, 1392370), (4, 696185), (5, 556948), (7, 397820), (10, 278474), (14, 198910), (20, 139237), (28, 99455), (35, 79564), (70, 39782), (140, 19891)]