1380063920

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{229}}^1\times {\mathrm{1061}}^1$

素因数の和:1374

約数の個数: 80

約数和(自身を含む): 3271129920

約数和(自身を除く): 1891066000

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 229, 284, 355, 458, 568, 710, 916, 1061, 1136, 1145, 1420, 1832, 2122, 2290, 2840, 3664, 4244, 4580, 5305, 5680, 8488, 9160, 10610, 16259, 16976, 18320, 21220, 32518, 42440, 65036, 75331, 81295, 84880, 130072, 150662, 162590, 242969, 260144, 301324, 325180, 376655, 485938, 602648, 650360, 753310, 971876, 1205296, 1214845, 1300720, 1506620, 1943752, 2429690, 3013240, 3887504, 4859380, 6026480, 9718760, 17250799, 19437520, 34501598, 69003196, 86253995, 138006392, 172507990, 276012784, 345015980, 690031960, 1380063920]

約数ペア:

[(1, 1380063920), (2, 690031960), (4, 345015980), (5, 276012784), (8, 172507990), (10, 138006392), (16, 86253995), (20, 69003196), (40, 34501598), (71, 19437520), (80, 17250799), (142, 9718760), (229, 6026480), (284, 4859380), (355, 3887504), (458, 3013240), (568, 2429690), (710, 1943752), (916, 1506620), (1061, 1300720), (1136, 1214845), (1145, 1205296), (1420, 971876), (1832, 753310), (2122, 650360), (2290, 602648), (2840, 485938), (3664, 376655), (4244, 325180), (4580, 301324), (5305, 260144), (5680, 242969), (8488, 162590), (9160, 150662), (10610, 130072), (16259, 84880), (16976, 81295), (18320, 75331), (21220, 65036), (32518, 42440)]