201640760

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{1987}}^1$

素因数の和:2100

約数の個数: 64

約数和(自身を含む): 472348800

約数和(自身を除く): 270708040

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 59, 86, 118, 172, 215, 236, 295, 344, 430, 472, 590, 860, 1180, 1720, 1987, 2360, 2537, 3974, 5074, 7948, 9935, 10148, 12685, 15896, 19870, 20296, 25370, 39740, 50740, 79480, 85441, 101480, 117233, 170882, 234466, 341764, 427205, 468932, 586165, 683528, 854410, 937864, 1172330, 1708820, 2344660, 3417640, 4689320, 5041019, 10082038, 20164076, 25205095, 40328152, 50410190, 100820380, 201640760]

約数ペア:

[(1, 201640760), (2, 100820380), (4, 50410190), (5, 40328152), (8, 25205095), (10, 20164076), (20, 10082038), (40, 5041019), (43, 4689320), (59, 3417640), (86, 2344660), (118, 1708820), (172, 1172330), (215, 937864), (236, 854410), (295, 683528), (344, 586165), (430, 468932), (472, 427205), (590, 341764), (860, 234466), (1180, 170882), (1720, 117233), (1987, 101480), (2360, 85441), (2537, 79480), (3974, 50740), (5074, 39740), (7948, 25370), (9935, 20296), (10148, 19870), (12685, 15896)]