20172120

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{97}}^1\times {\mathrm{1733}}^1$

素因数の和:1844

約数の個数: 64

約数和(自身を含む): 61175520

約数和(自身を除く): 41003400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 97, 120, 194, 291, 388, 485, 582, 776, 970, 1164, 1455, 1733, 1940, 2328, 2910, 3466, 3880, 5199, 5820, 6932, 8665, 10398, 11640, 13864, 17330, 20796, 25995, 34660, 41592, 51990, 69320, 103980, 168101, 207960, 336202, 504303, 672404, 840505, 1008606, 1344808, 1681010, 2017212, 2521515, 3362020, 4034424, 5043030, 6724040, 10086060, 20172120]

約数ペア:

[(1, 20172120), (2, 10086060), (3, 6724040), (4, 5043030), (5, 4034424), (6, 3362020), (8, 2521515), (10, 2017212), (12, 1681010), (15, 1344808), (20, 1008606), (24, 840505), (30, 672404), (40, 504303), (60, 336202), (97, 207960), (120, 168101), (194, 103980), (291, 69320), (388, 51990), (485, 41592), (582, 34660), (776, 25995), (970, 20796), (1164, 17330), (1455, 13864), (1733, 11640), (1940, 10398), (2328, 8665), (2910, 6932), (3466, 5820), (3880, 5199)]