168405640

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^2\times {\mathrm{337}}^1$

素因数の和:423

約数の個数: 96

約数和(自身を含む): 422898840

約数和(自身を除く): 254493200

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 31, 40, 52, 62, 65, 104, 124, 130, 155, 248, 260, 310, 337, 403, 520, 620, 674, 806, 961, 1240, 1348, 1612, 1685, 1922, 2015, 2696, 3224, 3370, 3844, 4030, 4381, 4805, 6740, 7688, 8060, 8762, 9610, 10447, 12493, 13480, 16120, 17524, 19220, 20894, 21905, 24986, 35048, 38440, 41788, 43810, 49972, 52235, 62465, 83576, 87620, 99944, 104470, 124930, 135811, 175240, 208940, 249860, 271622, 323857, 417880, 499720, 543244, 647714, 679055, 1086488, 1295428, 1358110, 1619285, 2590856, 2716220, 3238570, 4210141, 5432440, 6477140, 8420282, 12954280, 16840564, 21050705, 33681128, 42101410, 84202820, 168405640]

約数ペア:

[(1, 168405640), (2, 84202820), (4, 42101410), (5, 33681128), (8, 21050705), (10, 16840564), (13, 12954280), (20, 8420282), (26, 6477140), (31, 5432440), (40, 4210141), (52, 3238570), (62, 2716220), (65, 2590856), (104, 1619285), (124, 1358110), (130, 1295428), (155, 1086488), (248, 679055), (260, 647714), (310, 543244), (337, 499720), (403, 417880), (520, 323857), (620, 271622), (674, 249860), (806, 208940), (961, 175240), (1240, 135811), (1348, 124930), (1612, 104470), (1685, 99944), (1922, 87620), (2015, 83576), (2696, 62465), (3224, 52235), (3370, 49972), (3844, 43810), (4030, 41788), (4381, 38440), (4805, 35048), (6740, 24986), (7688, 21905), (8060, 20894), (8762, 19220), (9610, 17524), (10447, 16120), (12493, 13480)]