20191145360

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{143159}}^1$

素因数の和:143256

約数の個数: 80

約数和(自身を含む): 49208100480

約数和(自身を除く): 29016955120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 43, 80, 82, 86, 164, 172, 205, 215, 328, 344, 410, 430, 656, 688, 820, 860, 1640, 1720, 1763, 3280, 3440, 3526, 7052, 8815, 14104, 17630, 28208, 35260, 70520, 141040, 143159, 286318, 572636, 715795, 1145272, 1431590, 2290544, 2863180, 5726360, 5869519, 6155837, 11452720, 11739038, 12311674, 23478076, 24623348, 29347595, 30779185, 46956152, 49246696, 58695190, 61558370, 93912304, 98493392, 117390380, 123116740, 234780760, 246233480, 252389317, 469561520, 492466960, 504778634, 1009557268, 1261946585, 2019114536, 2523893170, 4038229072, 5047786340, 10095572680, 20191145360]

約数ペア:

[(1, 20191145360), (2, 10095572680), (4, 5047786340), (5, 4038229072), (8, 2523893170), (10, 2019114536), (16, 1261946585), (20, 1009557268), (40, 504778634), (41, 492466960), (43, 469561520), (80, 252389317), (82, 246233480), (86, 234780760), (164, 123116740), (172, 117390380), (205, 98493392), (215, 93912304), (328, 61558370), (344, 58695190), (410, 49246696), (430, 46956152), (656, 30779185), (688, 29347595), (820, 24623348), (860, 23478076), (1640, 12311674), (1720, 11739038), (1763, 11452720), (3280, 6155837), (3440, 5869519), (3526, 5726360), (7052, 2863180), (8815, 2290544), (14104, 1431590), (17630, 1145272), (28208, 715795), (35260, 572636), (70520, 286318), (141040, 143159)]