20736040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{39877}}^1$

素因数の和:39901

約数の個数: 32

約数和(自身を含む): 50246280

約数和(自身を除く): 29510240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 39877, 79754, 159508, 199385, 319016, 398770, 518401, 797540, 1036802, 1595080, 2073604, 2592005, 4147208, 5184010, 10368020, 20736040]

約数ペア:

[(1, 20736040), (2, 10368020), (4, 5184010), (5, 4147208), (8, 2592005), (10, 2073604), (13, 1595080), (20, 1036802), (26, 797540), (40, 518401), (52, 398770), (65, 319016), (104, 199385), (130, 159508), (260, 79754), (520, 39877)]