31357320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1\times {\mathrm{103}}^1$

素因数の和:219

約数の個数: 128

約数和(自身を含む): 98841600

約数和(自身を除く): 67484280

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 59, 60, 86, 103, 118, 120, 129, 172, 177, 206, 215, 236, 258, 295, 309, 344, 354, 412, 430, 472, 515, 516, 590, 618, 645, 708, 824, 860, 885, 1030, 1032, 1180, 1236, 1290, 1416, 1545, 1720, 1770, 2060, 2360, 2472, 2537, 2580, 3090, 3540, 4120, 4429, 5074, 5160, 6077, 6180, 7080, 7611, 8858, 10148, 12154, 12360, 12685, 13287, 15222, 17716, 18231, 20296, 22145, 24308, 25370, 26574, 30385, 30444, 35432, 36462, 38055, 44290, 48616, 50740, 53148, 60770, 60888, 66435, 72924, 76110, 88580, 91155, 101480, 106296, 121540, 132870, 145848, 152220, 177160, 182310, 243080, 261311, 265740, 304440, 364620, 522622, 531480, 729240, 783933, 1045244, 1306555, 1567866, 2090488, 2613110, 3135732, 3919665, 5226220, 6271464, 7839330, 10452440, 15678660, 31357320]

約数ペア:

[(1, 31357320), (2, 15678660), (3, 10452440), (4, 7839330), (5, 6271464), (6, 5226220), (8, 3919665), (10, 3135732), (12, 2613110), (15, 2090488), (20, 1567866), (24, 1306555), (30, 1045244), (40, 783933), (43, 729240), (59, 531480), (60, 522622), (86, 364620), (103, 304440), (118, 265740), (120, 261311), (129, 243080), (172, 182310), (177, 177160), (206, 152220), (215, 145848), (236, 132870), (258, 121540), (295, 106296), (309, 101480), (344, 91155), (354, 88580), (412, 76110), (430, 72924), (472, 66435), (515, 60888), (516, 60770), (590, 53148), (618, 50740), (645, 48616), (708, 44290), (824, 38055), (860, 36462), (885, 35432), (1030, 30444), (1032, 30385), (1180, 26574), (1236, 25370), (1290, 24308), (1416, 22145), (1545, 20296), (1720, 18231), (1770, 17716), (2060, 15222), (2360, 13287), (2472, 12685), (2537, 12360), (2580, 12154), (3090, 10148), (3540, 8858), (4120, 7611), (4429, 7080), (5074, 6180), (5160, 6077)]