40072040

素因数分解:

$2^3\times 5^1\times {\mathrm{1001801}}^1$

素因数の和:1001812

約数の個数: 16

約数和(自身を含む): 90162180

約数和(自身を除く): 50090140

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 1001801, 2003602, 4007204, 5009005, 8014408, 10018010, 20036020, 40072040]

約数ペア:

[(1, 40072040), (2, 20036020), (4, 10018010), (5, 8014408), (8, 5009005), (10, 4007204), (20, 2003602), (40, 1001801)]