8002780

素因数分解:

$2^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{3671}}^1$

素因数の和:3789

約数の個数: 24

約数和(自身を含む): 16964640

約数和(自身を除く): 8961860

約数列:

[1, 2, 4, 5, 10, 20, 109, 218, 436, 545, 1090, 2180, 3671, 7342, 14684, 18355, 36710, 73420, 400139, 800278, 1600556, 2000695, 4001390, 8002780]

約数ペア:

[(1, 8002780), (2, 4001390), (4, 2000695), (5, 1600556), (10, 800278), (20, 400139), (109, 73420), (218, 36710), (436, 18355), (545, 14684), (1090, 7342), (2180, 3671)]