199700980

素因数分解:

$2^2\times 5^1\times {\mathrm{227}}^1\times {\mathrm{43987}}^1$

素因数の和:44223

約数の個数: 24

約数和(自身を含む): 421229088

約数和(自身を除く): 221528108

約数列:

[1, 2, 4, 5, 10, 20, 227, 454, 908, 1135, 2270, 4540, 43987, 87974, 175948, 219935, 439870, 879740, 9985049, 19970098, 39940196, 49925245, 99850490, 199700980]

約数ペア:

[(1, 199700980), (2, 99850490), (4, 49925245), (5, 39940196), (10, 19970098), (20, 9985049), (227, 879740), (454, 439870), (908, 219935), (1135, 175948), (2270, 87974), (4540, 43987)]