3158420

素因数分解:

$2^2\times 5^1\times {\mathrm{79}}^1\times {\mathrm{1999}}^1$

素因数の和:2087

約数の個数: 24

約数和(自身を含む): 6720000

約数和(自身を除く): 3561580

約数列:

[1, 2, 4, 5, 10, 20, 79, 158, 316, 395, 790, 1580, 1999, 3998, 7996, 9995, 19990, 39980, 157921, 315842, 631684, 789605, 1579210, 3158420]

約数ペア:

[(1, 3158420), (2, 1579210), (4, 789605), (5, 631684), (10, 315842), (20, 157921), (79, 39980), (158, 19990), (316, 9995), (395, 7996), (790, 3998), (1580, 1999)]