72808040

素因数分解:

$2^3\times 5^1\times {\mathrm{1820201}}^1$

素因数の和:1820212

約数の個数: 16

約数和(自身を含む): 163818180

約数和(自身を除く): 91010140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1820201, 3640402, 7280804, 9101005, 14561608, 18202010, 36404020, 72808040]

約数ペア:

[(1, 72808040), (2, 36404020), (4, 18202010), (5, 14561608), (8, 9101005), (10, 7280804), (20, 3640402), (40, 1820201)]