21742000

素因数分解:

$2^4\times 5^3\times 7^1\times {\mathrm{1553}}^1$

素因数の和:1583

約数の個数: 80

約数和(自身を含む): 60121152

約数和(自身を除く): 38379152

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 125, 140, 175, 200, 250, 280, 350, 400, 500, 560, 700, 875, 1000, 1400, 1553, 1750, 2000, 2800, 3106, 3500, 6212, 7000, 7765, 10871, 12424, 14000, 15530, 21742, 24848, 31060, 38825, 43484, 54355, 62120, 77650, 86968, 108710, 124240, 155300, 173936, 194125, 217420, 271775, 310600, 388250, 434840, 543550, 621200, 776500, 869680, 1087100, 1358875, 1553000, 2174200, 2717750, 3106000, 4348400, 5435500, 10871000, 21742000]

約数ペア:

[(1, 21742000), (2, 10871000), (4, 5435500), (5, 4348400), (7, 3106000), (8, 2717750), (10, 2174200), (14, 1553000), (16, 1358875), (20, 1087100), (25, 869680), (28, 776500), (35, 621200), (40, 543550), (50, 434840), (56, 388250), (70, 310600), (80, 271775), (100, 217420), (112, 194125), (125, 173936), (140, 155300), (175, 124240), (200, 108710), (250, 86968), (280, 77650), (350, 62120), (400, 54355), (500, 43484), (560, 38825), (700, 31060), (875, 24848), (1000, 21742), (1400, 15530), (1553, 14000), (1750, 12424), (2000, 10871), (2800, 7765), (3106, 7000), (3500, 6212)]