18722140

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{30197}}^1$

素因数の和:30237

約数の個数: 24

約数和(自身を含む): 40586112

約数和(自身を除く): 21863972

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 30197, 60394, 120788, 150985, 301970, 603940, 936107, 1872214, 3744428, 4680535, 9361070, 18722140]

約数ペア:

[(1, 18722140), (2, 9361070), (4, 4680535), (5, 3744428), (10, 1872214), (20, 936107), (31, 603940), (62, 301970), (124, 150985), (155, 120788), (310, 60394), (620, 30197)]