489605980

素因数分解:

$2^2\times 5^1\times {\mathrm{4801}}^1\times {\mathrm{5099}}^1$

素因数の和:9909

約数の個数: 24

約数和(自身を含む): 1028588400

約数和(自身を除く): 538982420

約数列:

[1, 2, 4, 5, 10, 20, 4801, 5099, 9602, 10198, 19204, 20396, 24005, 25495, 48010, 50990, 96020, 101980, 24480299, 48960598, 97921196, 122401495, 244802990, 489605980]

約数ペア:

[(1, 489605980), (2, 244802990), (4, 122401495), (5, 97921196), (10, 48960598), (20, 24480299), (4801, 101980), (5099, 96020), (9602, 50990), (10198, 48010), (19204, 25495), (20396, 24005)]