198393980

素因数分解:

$2^2\times 5^1\times {\mathrm{2339}}^1\times {\mathrm{4241}}^1$

素因数の和:6589

約数の個数: 24

約数和(自身を含む): 416903760

約数和(自身を除く): 218509780

約数列:

[1, 2, 4, 5, 10, 20, 2339, 4241, 4678, 8482, 9356, 11695, 16964, 21205, 23390, 42410, 46780, 84820, 9919699, 19839398, 39678796, 49598495, 99196990, 198393980]

約数ペア:

[(1, 198393980), (2, 99196990), (4, 49598495), (5, 39678796), (10, 19839398), (20, 9919699), (2339, 84820), (4241, 46780), (4678, 42410), (8482, 23390), (9356, 21205), (11695, 16964)]