81535264

素因数分解:

$2^5\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{2111}}^1$

素因数の和:2209

約数の個数: 48

約数和(自身を含む): 172440576

約数和(自身を除く): 90905312

約数列:

[1, 2, 4, 8, 16, 17, 32, 34, 68, 71, 136, 142, 272, 284, 544, 568, 1136, 1207, 2111, 2272, 2414, 4222, 4828, 8444, 9656, 16888, 19312, 33776, 35887, 38624, 67552, 71774, 143548, 149881, 287096, 299762, 574192, 599524, 1148384, 1199048, 2398096, 2547977, 4796192, 5095954, 10191908, 20383816, 40767632, 81535264]

約数ペア:

[(1, 81535264), (2, 40767632), (4, 20383816), (8, 10191908), (16, 5095954), (17, 4796192), (32, 2547977), (34, 2398096), (68, 1199048), (71, 1148384), (136, 599524), (142, 574192), (272, 299762), (284, 287096), (544, 149881), (568, 143548), (1136, 71774), (1207, 67552), (2111, 38624), (2272, 35887), (2414, 33776), (4222, 19312), (4828, 16888), (8444, 9656)]