1020640

素因数分解:

$2^5\times 5^1\times {\mathrm{6379}}^1$

素因数の和:6394

約数の個数: 24

約数和(自身を含む): 2411640

約数和(自身を除く): 1391000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 6379, 12758, 25516, 31895, 51032, 63790, 102064, 127580, 204128, 255160, 510320, 1020640]

約数ペア:

[(1, 1020640), (2, 510320), (4, 255160), (5, 204128), (8, 127580), (10, 102064), (16, 63790), (20, 51032), (32, 31895), (40, 25516), (80, 12758), (160, 6379)]