40805140

素因数分解:

$2^2\times 5^1\times {\mathrm{149}}^1\times {\mathrm{13693}}^1$

素因数の和:13851

約数の個数: 24

約数和(自身を含む): 86272200

約数和(自身を除く): 45467060

約数列:

[1, 2, 4, 5, 10, 20, 149, 298, 596, 745, 1490, 2980, 13693, 27386, 54772, 68465, 136930, 273860, 2040257, 4080514, 8161028, 10201285, 20402570, 40805140]

約数ペア:

[(1, 40805140), (2, 20402570), (4, 10201285), (5, 8161028), (10, 4080514), (20, 2040257), (149, 273860), (298, 136930), (596, 68465), (745, 54772), (1490, 27386), (2980, 13693)]