128223020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{1283}}^1$

素因数の和:1574

約数の個数: 48

約数和(自身を含む): 284739840

約数和(自身を除く): 156516820

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 263, 380, 526, 1052, 1283, 1315, 2566, 2630, 4997, 5132, 5260, 6415, 9994, 12830, 19988, 24377, 24985, 25660, 48754, 49970, 97508, 99940, 121885, 243770, 337429, 487540, 674858, 1349716, 1687145, 3374290, 6411151, 6748580, 12822302, 25644604, 32055755, 64111510, 128223020]

約数ペア:

[(1, 128223020), (2, 64111510), (4, 32055755), (5, 25644604), (10, 12822302), (19, 6748580), (20, 6411151), (38, 3374290), (76, 1687145), (95, 1349716), (190, 674858), (263, 487540), (380, 337429), (526, 243770), (1052, 121885), (1283, 99940), (1315, 97508), (2566, 49970), (2630, 48754), (4997, 25660), (5132, 24985), (5260, 24377), (6415, 19988), (9994, 12830)]