28297760

素因数分解:

$2^5\times 5^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:186

約数の個数: 96

約数和(自身を含む): 70543872

約数和(自身を除く): 42246112

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 47, 53, 71, 80, 94, 106, 142, 160, 188, 212, 235, 265, 284, 355, 376, 424, 470, 530, 568, 710, 752, 848, 940, 1060, 1136, 1420, 1504, 1696, 1880, 2120, 2272, 2491, 2840, 3337, 3760, 3763, 4240, 4982, 5680, 6674, 7520, 7526, 8480, 9964, 11360, 12455, 13348, 15052, 16685, 18815, 19928, 24910, 26696, 30104, 33370, 37630, 39856, 49820, 53392, 60208, 66740, 75260, 79712, 99640, 106784, 120416, 133480, 150520, 176861, 199280, 266960, 301040, 353722, 398560, 533920, 602080, 707444, 884305, 1414888, 1768610, 2829776, 3537220, 5659552, 7074440, 14148880, 28297760]

約数ペア:

[(1, 28297760), (2, 14148880), (4, 7074440), (5, 5659552), (8, 3537220), (10, 2829776), (16, 1768610), (20, 1414888), (32, 884305), (40, 707444), (47, 602080), (53, 533920), (71, 398560), (80, 353722), (94, 301040), (106, 266960), (142, 199280), (160, 176861), (188, 150520), (212, 133480), (235, 120416), (265, 106784), (284, 99640), (355, 79712), (376, 75260), (424, 66740), (470, 60208), (530, 53392), (568, 49820), (710, 39856), (752, 37630), (848, 33370), (940, 30104), (1060, 26696), (1136, 24910), (1420, 19928), (1504, 18815), (1696, 16685), (1880, 15052), (2120, 13348), (2272, 12455), (2491, 11360), (2840, 9964), (3337, 8480), (3760, 7526), (3763, 7520), (4240, 6674), (4982, 5680)]