81816716

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{20393}}^1$

素因数の和:20473

約数の個数: 24

約数和(自身を含む): 154178640

約数和(自身を除く): 72361924

約数列:

[1, 2, 4, 17, 34, 59, 68, 118, 236, 1003, 2006, 4012, 20393, 40786, 81572, 346681, 693362, 1203187, 1386724, 2406374, 4812748, 20454179, 40908358, 81816716]

約数ペア:

[(1, 81816716), (2, 40908358), (4, 20454179), (17, 4812748), (34, 2406374), (59, 1386724), (68, 1203187), (118, 693362), (236, 346681), (1003, 81572), (2006, 40786), (4012, 20393)]