80685800

素因数分解:

$2^3\times 5^2\times {\mathrm{13}}^1\times {\mathrm{31033}}^1$

素因数の和:31062

約数の個数: 48

約数和(自身を含む): 202031340

約数和(自身を除く): 121345540

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 25, 26, 40, 50, 52, 65, 100, 104, 130, 200, 260, 325, 520, 650, 1300, 2600, 31033, 62066, 124132, 155165, 248264, 310330, 403429, 620660, 775825, 806858, 1241320, 1551650, 1613716, 2017145, 3103300, 3227432, 4034290, 6206600, 8068580, 10085725, 16137160, 20171450, 40342900, 80685800]

約数ペア:

[(1, 80685800), (2, 40342900), (4, 20171450), (5, 16137160), (8, 10085725), (10, 8068580), (13, 6206600), (20, 4034290), (25, 3227432), (26, 3103300), (40, 2017145), (50, 1613716), (52, 1551650), (65, 1241320), (100, 806858), (104, 775825), (130, 620660), (200, 403429), (260, 310330), (325, 248264), (520, 155165), (650, 124132), (1300, 62066), (2600, 31033)]