81302690

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{31391}}^1$

素因数の和:31442

約数の個数: 32

約数和(自身を含む): 171777024

約数和(自身を除く): 90474334

約数列:

[1, 2, 5, 7, 10, 14, 35, 37, 70, 74, 185, 259, 370, 518, 1295, 2590, 31391, 62782, 156955, 219737, 313910, 439474, 1098685, 1161467, 2197370, 2322934, 5807335, 8130269, 11614670, 16260538, 40651345, 81302690]

約数ペア:

[(1, 81302690), (2, 40651345), (5, 16260538), (7, 11614670), (10, 8130269), (14, 5807335), (35, 2322934), (37, 2197370), (70, 1161467), (74, 1098685), (185, 439474), (259, 313910), (370, 219737), (518, 156955), (1295, 62782), (2590, 31391)]