1620229640

素因数分解:

$2^3\times 5^1\times {\mathrm{40505741}}^1$

素因数の和:40505752

約数の個数: 16

約数和(自身を含む): 3645516780

約数和(自身を除く): 2025287140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 40505741, 81011482, 162022964, 202528705, 324045928, 405057410, 810114820, 1620229640]

約数ペア:

[(1, 1620229640), (2, 810114820), (4, 405057410), (5, 324045928), (8, 202528705), (10, 162022964), (20, 81011482), (40, 40505741)]