81613142

素因数分解:

$2^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1\times {\mathrm{7789}}^1$

素因数の和:7848

約数の個数: 24

約数和(自身を含む): 136854720

約数和(自身を除く): 55241578

約数列:

[1, 2, 13, 26, 31, 62, 169, 338, 403, 806, 5239, 7789, 10478, 15578, 101257, 202514, 241459, 482918, 1316341, 2632682, 3138967, 6277934, 40806571, 81613142]

約数ペア:

[(1, 81613142), (2, 40806571), (13, 6277934), (26, 3138967), (31, 2632682), (62, 1316341), (169, 482918), (338, 241459), (403, 202514), (806, 101257), (5239, 15578), (7789, 10478)]