80200

素因数分解:

$2^3\times 5^2\times {\mathrm{401}}^1$

素因数の和:417

約数の個数: 24

約数和(自身を含む): 186930

約数和(自身を除く): 106730

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 401, 802, 1604, 2005, 3208, 4010, 8020, 10025, 16040, 20050, 40100, 80200]

約数ペア:

[(1, 80200), (2, 40100), (4, 20050), (5, 16040), (8, 10025), (10, 8020), (20, 4010), (25, 3208), (40, 2005), (50, 1604), (100, 802), (200, 401)]