18822580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{4337}}^1$

素因数の和:4384

約数の個数: 48

約数和(自身を含む): 46642176

約数和(自身を除く): 27819596

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 31, 35, 62, 70, 124, 140, 155, 217, 310, 434, 620, 868, 1085, 2170, 4337, 4340, 8674, 17348, 21685, 30359, 43370, 60718, 86740, 121436, 134447, 151795, 268894, 303590, 537788, 607180, 672235, 941129, 1344470, 1882258, 2688940, 3764516, 4705645, 9411290, 18822580]

約数ペア:

[(1, 18822580), (2, 9411290), (4, 4705645), (5, 3764516), (7, 2688940), (10, 1882258), (14, 1344470), (20, 941129), (28, 672235), (31, 607180), (35, 537788), (62, 303590), (70, 268894), (124, 151795), (140, 134447), (155, 121436), (217, 86740), (310, 60718), (434, 43370), (620, 30359), (868, 21685), (1085, 17348), (2170, 8674), (4337, 4340)]