79204520

素因数分解:

$2^3\times 5^1\times {\mathrm{1980113}}^1$

素因数の和:1980124

約数の個数: 16

約数和(自身を含む): 178210260

約数和(自身を除く): 99005740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1980113, 3960226, 7920452, 9900565, 15840904, 19801130, 39602260, 79204520]

約数ペア:

[(1, 79204520), (2, 39602260), (4, 19801130), (5, 15840904), (8, 9900565), (10, 7920452), (20, 3960226), (40, 1980113)]