21656556320

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{272341}}^1$

素因数の和:272434

約数の個数: 96

約数和(自身を含む): 59296478976

約数和(自身を除く): 37639922656

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 71, 80, 112, 140, 142, 160, 224, 280, 284, 355, 497, 560, 568, 710, 994, 1120, 1136, 1420, 1988, 2272, 2485, 2840, 3976, 4970, 5680, 7952, 9940, 11360, 15904, 19880, 39760, 79520, 272341, 544682, 1089364, 1361705, 1906387, 2178728, 2723410, 3812774, 4357456, 5446820, 7625548, 8714912, 9531935, 10893640, 15251096, 19063870, 19336211, 21787280, 30502192, 38127740, 38672422, 43574560, 61004384, 76255480, 77344844, 96681055, 135353477, 152510960, 154689688, 193362110, 270706954, 305021920, 309379376, 386724220, 541413908, 618758752, 676767385, 773448440, 1082827816, 1353534770, 1546896880, 2165655632, 2707069540, 3093793760, 4331311264, 5414139080, 10828278160, 21656556320]

約数ペア:

[(1, 21656556320), (2, 10828278160), (4, 5414139080), (5, 4331311264), (7, 3093793760), (8, 2707069540), (10, 2165655632), (14, 1546896880), (16, 1353534770), (20, 1082827816), (28, 773448440), (32, 676767385), (35, 618758752), (40, 541413908), (56, 386724220), (70, 309379376), (71, 305021920), (80, 270706954), (112, 193362110), (140, 154689688), (142, 152510960), (160, 135353477), (224, 96681055), (280, 77344844), (284, 76255480), (355, 61004384), (497, 43574560), (560, 38672422), (568, 38127740), (710, 30502192), (994, 21787280), (1120, 19336211), (1136, 19063870), (1420, 15251096), (1988, 10893640), (2272, 9531935), (2485, 8714912), (2840, 7625548), (3976, 5446820), (4970, 4357456), (5680, 3812774), (7952, 2723410), (9940, 2178728), (11360, 1906387), (15904, 1361705), (19880, 1089364), (39760, 544682), (79520, 272341)]