164020100

素因数分解:

$2^2\times 5^2\times {\mathrm{1640201}}^1$

素因数の和:1640215

約数の個数: 18

約数和(自身を含む): 355923834

約数和(自身を除く): 191903734

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 1640201, 3280402, 6560804, 8201005, 16402010, 32804020, 41005025, 82010050, 164020100]

約数ペア:

[(1, 164020100), (2, 82010050), (4, 41005025), (5, 32804020), (10, 16402010), (20, 8201005), (25, 6560804), (50, 3280402), (100, 1640201)]