20167700

素因数分解:

$2^2\times 5^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:681

約数の個数: 72

約数和(自身を含む): 51163392

約数和(自身を除く): 30995692

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 25, 28, 35, 47, 50, 70, 94, 100, 140, 175, 188, 235, 329, 350, 470, 613, 658, 700, 940, 1175, 1226, 1316, 1645, 2350, 2452, 3065, 3290, 4291, 4700, 6130, 6580, 8225, 8582, 12260, 15325, 16450, 17164, 21455, 28811, 30650, 32900, 42910, 57622, 61300, 85820, 107275, 115244, 144055, 201677, 214550, 288110, 403354, 429100, 576220, 720275, 806708, 1008385, 1440550, 2016770, 2881100, 4033540, 5041925, 10083850, 20167700]

約数ペア:

[(1, 20167700), (2, 10083850), (4, 5041925), (5, 4033540), (7, 2881100), (10, 2016770), (14, 1440550), (20, 1008385), (25, 806708), (28, 720275), (35, 576220), (47, 429100), (50, 403354), (70, 288110), (94, 214550), (100, 201677), (140, 144055), (175, 115244), (188, 107275), (235, 85820), (329, 61300), (350, 57622), (470, 42910), (613, 32900), (658, 30650), (700, 28811), (940, 21455), (1175, 17164), (1226, 16450), (1316, 15325), (1645, 12260), (2350, 8582), (2452, 8225), (3065, 6580), (3290, 6130), (4291, 4700)]