81750565

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1399}}^1$

素因数の和:1477

約数の個数: 32

約数和(自身を含む): 112896000

約数和(自身を除く): 31145435

約数列:

[1, 5, 13, 29, 31, 65, 145, 155, 377, 403, 899, 1399, 1885, 2015, 4495, 6995, 11687, 18187, 40571, 43369, 58435, 90935, 202855, 216845, 527423, 563797, 1257701, 2637115, 2818985, 6288505, 16350113, 81750565]

約数ペア:

[(1, 81750565), (5, 16350113), (13, 6288505), (29, 2818985), (31, 2637115), (65, 1257701), (145, 563797), (155, 527423), (377, 216845), (403, 202855), (899, 90935), (1399, 58435), (1885, 43369), (2015, 40571), (4495, 18187), (6995, 11687)]