81611656

素因数分解:

$2^3\times 7^2\times {\mathrm{61}}^1\times {\mathrm{3413}}^1$

素因数の和:3494

約数の個数: 48

約数和(自身を含む): 180976140

約数和(自身を除く): 99364484

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 61, 98, 122, 196, 244, 392, 427, 488, 854, 1708, 2989, 3413, 3416, 5978, 6826, 11956, 13652, 23891, 23912, 27304, 47782, 95564, 167237, 191128, 208193, 334474, 416386, 668948, 832772, 1337896, 1457351, 1665544, 2914702, 5829404, 10201457, 11658808, 20402914, 40805828, 81611656]

約数ペア:

[(1, 81611656), (2, 40805828), (4, 20402914), (7, 11658808), (8, 10201457), (14, 5829404), (28, 2914702), (49, 1665544), (56, 1457351), (61, 1337896), (98, 832772), (122, 668948), (196, 416386), (244, 334474), (392, 208193), (427, 191128), (488, 167237), (854, 95564), (1708, 47782), (2989, 27304), (3413, 23912), (3416, 23891), (5978, 13652), (6826, 11956)]