18902140

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6343}}^1$

素因数の和:6501

約数の個数: 24

約数和(自身を含む): 39967200

約数和(自身を除く): 21065060

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 6343, 12686, 25372, 31715, 63430, 126860, 945107, 1890214, 3780428, 4725535, 9451070, 18902140]

約数ペア:

[(1, 18902140), (2, 9451070), (4, 4725535), (5, 3780428), (10, 1890214), (20, 945107), (149, 126860), (298, 63430), (596, 31715), (745, 25372), (1490, 12686), (2980, 6343)]