19893770

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{137}}^1\times {\mathrm{1117}}^1$

素因数の和:1274

約数の個数: 32

約数和(自身を含む): 38879568

約数和(自身を除く): 18985798

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 137, 274, 685, 1117, 1370, 1781, 2234, 3562, 5585, 8905, 11170, 14521, 17810, 29042, 72605, 145210, 153029, 306058, 765145, 1530290, 1989377, 3978754, 9946885, 19893770]

約数ペア:

[(1, 19893770), (2, 9946885), (5, 3978754), (10, 1989377), (13, 1530290), (26, 765145), (65, 306058), (130, 153029), (137, 145210), (274, 72605), (685, 29042), (1117, 17810), (1370, 14521), (1781, 11170), (2234, 8905), (3562, 5585)]