20169700

素因数分解:

$2^2\times 5^2\times {\mathrm{101}}^1\times {\mathrm{1997}}^1$

素因数の和:2112

約数の個数: 36

約数和(自身を含む): 44223732

約数和(自身を除く): 24054032

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 101, 202, 404, 505, 1010, 1997, 2020, 2525, 3994, 5050, 7988, 9985, 10100, 19970, 39940, 49925, 99850, 199700, 201697, 403394, 806788, 1008485, 2016970, 4033940, 5042425, 10084850, 20169700]

約数ペア:

[(1, 20169700), (2, 10084850), (4, 5042425), (5, 4033940), (10, 2016970), (20, 1008485), (25, 806788), (50, 403394), (100, 201697), (101, 199700), (202, 99850), (404, 49925), (505, 39940), (1010, 19970), (1997, 10100), (2020, 9985), (2525, 7988), (3994, 5050)]