42740140

素因数分解:

$2^2\times 5^1\times {\mathrm{97}}^1\times {\mathrm{22031}}^1$

素因数の和:22137

約数の個数: 24

約数和(自身を含む): 90683712

約数和(自身を除く): 47943572

約数列:

[1, 2, 4, 5, 10, 20, 97, 194, 388, 485, 970, 1940, 22031, 44062, 88124, 110155, 220310, 440620, 2137007, 4274014, 8548028, 10685035, 21370070, 42740140]

約数ペア:

[(1, 42740140), (2, 21370070), (4, 10685035), (5, 8548028), (10, 4274014), (20, 2137007), (97, 440620), (194, 220310), (388, 110155), (485, 88124), (970, 44062), (1940, 22031)]