40728040

素因数分解:

$2^3\times 5^1\times {\mathrm{1018201}}^1$

素因数の和:1018212

約数の個数: 16

約数和(自身を含む): 91638180

約数和(自身を除く): 50910140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1018201, 2036402, 4072804, 5091005, 8145608, 10182010, 20364020, 40728040]

約数ペア:

[(1, 40728040), (2, 20364020), (4, 10182010), (5, 8145608), (8, 5091005), (10, 4072804), (20, 2036402), (40, 1018201)]