20653600

素因数分解:

$2^5\times 5^2\times {\mathrm{11}}^1\times {\mathrm{2347}}^1$

素因数の和:2378

約数の個数: 72

約数和(自身を含む): 55027728

約数和(自身を除く): 34374128

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 25, 32, 40, 44, 50, 55, 80, 88, 100, 110, 160, 176, 200, 220, 275, 352, 400, 440, 550, 800, 880, 1100, 1760, 2200, 2347, 4400, 4694, 8800, 9388, 11735, 18776, 23470, 25817, 37552, 46940, 51634, 58675, 75104, 93880, 103268, 117350, 129085, 187760, 206536, 234700, 258170, 375520, 413072, 469400, 516340, 645425, 826144, 938800, 1032680, 1290850, 1877600, 2065360, 2581700, 4130720, 5163400, 10326800, 20653600]

約数ペア:

[(1, 20653600), (2, 10326800), (4, 5163400), (5, 4130720), (8, 2581700), (10, 2065360), (11, 1877600), (16, 1290850), (20, 1032680), (22, 938800), (25, 826144), (32, 645425), (40, 516340), (44, 469400), (50, 413072), (55, 375520), (80, 258170), (88, 234700), (100, 206536), (110, 187760), (160, 129085), (176, 117350), (200, 103268), (220, 93880), (275, 75104), (352, 58675), (400, 51634), (440, 46940), (550, 37552), (800, 25817), (880, 23470), (1100, 18776), (1760, 11735), (2200, 9388), (2347, 8800), (4400, 4694)]