643750970

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{1423}}^1\times {\mathrm{2381}}^1$

素因数の和:3830

約数の個数: 32

約数和(自身を含む): 1221108480

約数和(自身を除く): 577357510

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 1423, 2381, 2846, 4762, 7115, 11905, 14230, 23810, 27037, 45239, 54074, 90478, 135185, 226195, 270370, 452390, 3388163, 6776326, 16940815, 33881630, 64375097, 128750194, 321875485, 643750970]

約数ペア:

[(1, 643750970), (2, 321875485), (5, 128750194), (10, 64375097), (19, 33881630), (38, 16940815), (95, 6776326), (190, 3388163), (1423, 452390), (2381, 270370), (2846, 226195), (4762, 135185), (7115, 90478), (11905, 54074), (14230, 45239), (23810, 27037)]