82020100

素因数分解:

$2^2\times 5^2\times {\mathrm{820201}}^1$

素因数の和:820215

約数の個数: 18

約数和(自身を含む): 177983834

約数和(自身を除く): 95963734

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 820201, 1640402, 3280804, 4101005, 8202010, 16404020, 20505025, 41010050, 82020100]

約数ペア:

[(1, 82020100), (2, 41010050), (4, 20505025), (5, 16404020), (10, 8202010), (20, 4101005), (25, 3280804), (50, 1640402), (100, 820201)]