8067880

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{1997}}^1$

素因数の和:2109

約数の個数: 32

約数和(自身を含む): 18341640

約数和(自身を除く): 10273760

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 202, 404, 505, 808, 1010, 1997, 2020, 3994, 4040, 7988, 9985, 15976, 19970, 39940, 79880, 201697, 403394, 806788, 1008485, 1613576, 2016970, 4033940, 8067880]

約数ペア:

[(1, 8067880), (2, 4033940), (4, 2016970), (5, 1613576), (8, 1008485), (10, 806788), (20, 403394), (40, 201697), (101, 79880), (202, 39940), (404, 19970), (505, 15976), (808, 9985), (1010, 7988), (1997, 4040), (2020, 3994)]