81118660

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{727}}^1\times {\mathrm{797}}^1$

素因数の和:1540

約数の個数: 48

約数和(自身を含む): 195197184

約数和(自身を除く): 114078524

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 727, 797, 1454, 1594, 2908, 3188, 3635, 3985, 5089, 5579, 7270, 7970, 10178, 11158, 14540, 15940, 20356, 22316, 25445, 27895, 50890, 55790, 101780, 111580, 579419, 1158838, 2317676, 2897095, 4055933, 5794190, 8111866, 11588380, 16223732, 20279665, 40559330, 81118660]

約数ペア:

[(1, 81118660), (2, 40559330), (4, 20279665), (5, 16223732), (7, 11588380), (10, 8111866), (14, 5794190), (20, 4055933), (28, 2897095), (35, 2317676), (70, 1158838), (140, 579419), (727, 111580), (797, 101780), (1454, 55790), (1594, 50890), (2908, 27895), (3188, 25445), (3635, 22316), (3985, 20356), (5089, 15940), (5579, 14540), (7270, 11158), (7970, 10178)]