81551754

素因数分解:

$2^1\times 3^2\times {\mathrm{17}}^2\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:360

約数の個数: 72

約数和(自身を含む): 191520108

約数和(自身を除く): 109968354

約数列:

[1, 2, 3, 6, 9, 17, 18, 34, 51, 61, 102, 122, 153, 183, 257, 289, 306, 366, 514, 549, 578, 771, 867, 1037, 1098, 1542, 1734, 2074, 2313, 2601, 3111, 4369, 4626, 5202, 6222, 8738, 9333, 13107, 15677, 17629, 18666, 26214, 31354, 35258, 39321, 47031, 52887, 74273, 78642, 94062, 105774, 141093, 148546, 158661, 222819, 266509, 282186, 317322, 445638, 533018, 668457, 799527, 1336914, 1599054, 2398581, 4530653, 4797162, 9061306, 13591959, 27183918, 40775877, 81551754]

約数ペア:

[(1, 81551754), (2, 40775877), (3, 27183918), (6, 13591959), (9, 9061306), (17, 4797162), (18, 4530653), (34, 2398581), (51, 1599054), (61, 1336914), (102, 799527), (122, 668457), (153, 533018), (183, 445638), (257, 317322), (289, 282186), (306, 266509), (366, 222819), (514, 158661), (549, 148546), (578, 141093), (771, 105774), (867, 94062), (1037, 78642), (1098, 74273), (1542, 52887), (1734, 47031), (2074, 39321), (2313, 35258), (2601, 31354), (3111, 26214), (4369, 18666), (4626, 17629), (5202, 15677), (6222, 13107), (8738, 9333)]