81627416

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18253}}^1$

素因数の和:18315

約数の個数: 32

約数和(自身を含む): 168666960

約数和(自身を除く): 87039544

約数列:

[1, 2, 4, 8, 13, 26, 43, 52, 86, 104, 172, 344, 559, 1118, 2236, 4472, 18253, 36506, 73012, 146024, 237289, 474578, 784879, 949156, 1569758, 1898312, 3139516, 6279032, 10203427, 20406854, 40813708, 81627416]

約数ペア:

[(1, 81627416), (2, 40813708), (4, 20406854), (8, 10203427), (13, 6279032), (26, 3139516), (43, 1898312), (52, 1569758), (86, 949156), (104, 784879), (172, 474578), (344, 237289), (559, 146024), (1118, 73012), (2236, 36506), (4472, 18253)]