21702800

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{337}}^1$

素因数の和:385

約数の個数: 120

約数和(自身を含む): 62365056

約数和(自身を除く): 40662256

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 50, 56, 70, 80, 92, 100, 112, 115, 140, 161, 175, 184, 200, 230, 280, 322, 337, 350, 368, 400, 460, 560, 575, 644, 674, 700, 805, 920, 1150, 1288, 1348, 1400, 1610, 1685, 1840, 2300, 2359, 2576, 2696, 2800, 3220, 3370, 4025, 4600, 4718, 5392, 6440, 6740, 7751, 8050, 8425, 9200, 9436, 11795, 12880, 13480, 15502, 16100, 16850, 18872, 23590, 26960, 31004, 32200, 33700, 37744, 38755, 47180, 54257, 58975, 62008, 64400, 67400, 77510, 94360, 108514, 117950, 124016, 134800, 155020, 188720, 193775, 217028, 235900, 271285, 310040, 387550, 434056, 471800, 542570, 620080, 775100, 868112, 943600, 1085140, 1356425, 1550200, 2170280, 2712850, 3100400, 4340560, 5425700, 10851400, 21702800]

約数ペア:

[(1, 21702800), (2, 10851400), (4, 5425700), (5, 4340560), (7, 3100400), (8, 2712850), (10, 2170280), (14, 1550200), (16, 1356425), (20, 1085140), (23, 943600), (25, 868112), (28, 775100), (35, 620080), (40, 542570), (46, 471800), (50, 434056), (56, 387550), (70, 310040), (80, 271285), (92, 235900), (100, 217028), (112, 193775), (115, 188720), (140, 155020), (161, 134800), (175, 124016), (184, 117950), (200, 108514), (230, 94360), (280, 77510), (322, 67400), (337, 64400), (350, 62008), (368, 58975), (400, 54257), (460, 47180), (560, 38755), (575, 37744), (644, 33700), (674, 32200), (700, 31004), (805, 26960), (920, 23590), (1150, 18872), (1288, 16850), (1348, 16100), (1400, 15502), (1610, 13480), (1685, 12880), (1840, 11795), (2300, 9436), (2359, 9200), (2576, 8425), (2696, 8050), (2800, 7751), (3220, 6740), (3370, 6440), (4025, 5392), (4600, 4718)]