81987136

素因数分解:

$2^6\times 7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 112

約数和(自身を含む): 205996032

約数和(自身を除く): 124008896

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 32, 44, 56, 64, 77, 88, 112, 127, 131, 154, 176, 224, 254, 262, 308, 352, 448, 508, 524, 616, 704, 889, 917, 1016, 1048, 1232, 1397, 1441, 1778, 1834, 2032, 2096, 2464, 2794, 2882, 3556, 3668, 4064, 4192, 4928, 5588, 5764, 7112, 7336, 8128, 8384, 9779, 10087, 11176, 11528, 14224, 14672, 16637, 19558, 20174, 22352, 23056, 28448, 29344, 33274, 39116, 40348, 44704, 46112, 56896, 58688, 66548, 78232, 80696, 89408, 92224, 116459, 133096, 156464, 161392, 183007, 232918, 266192, 312928, 322784, 366014, 465836, 532384, 625856, 645568, 732028, 931672, 1064768, 1281049, 1464056, 1863344, 2562098, 2928112, 3726688, 5124196, 5856224, 7453376, 10248392, 11712448, 20496784, 40993568, 81987136]

約数ペア:

[(1, 81987136), (2, 40993568), (4, 20496784), (7, 11712448), (8, 10248392), (11, 7453376), (14, 5856224), (16, 5124196), (22, 3726688), (28, 2928112), (32, 2562098), (44, 1863344), (56, 1464056), (64, 1281049), (77, 1064768), (88, 931672), (112, 732028), (127, 645568), (131, 625856), (154, 532384), (176, 465836), (224, 366014), (254, 322784), (262, 312928), (308, 266192), (352, 232918), (448, 183007), (508, 161392), (524, 156464), (616, 133096), (704, 116459), (889, 92224), (917, 89408), (1016, 80696), (1048, 78232), (1232, 66548), (1397, 58688), (1441, 56896), (1778, 46112), (1834, 44704), (2032, 40348), (2096, 39116), (2464, 33274), (2794, 29344), (2882, 28448), (3556, 23056), (3668, 22352), (4064, 20174), (4192, 19558), (4928, 16637), (5588, 14672), (5764, 14224), (7112, 11528), (7336, 11176), (8128, 10087), (8384, 9779)]