21187600

素因数分解:

$2^4\times 5^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{47}}^1$

素因数の和:102

約数の個数: 180

約数和(自身を含む): 63103104

約数和(自身を除く): 41915504

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 25, 28, 35, 40, 46, 47, 49, 50, 56, 70, 80, 92, 94, 98, 100, 112, 115, 140, 161, 175, 184, 188, 196, 200, 230, 235, 245, 280, 322, 329, 350, 368, 376, 392, 400, 460, 470, 490, 560, 575, 644, 658, 700, 752, 784, 805, 920, 940, 980, 1081, 1127, 1150, 1175, 1225, 1288, 1316, 1400, 1610, 1645, 1840, 1880, 1960, 2162, 2254, 2300, 2303, 2350, 2450, 2576, 2632, 2800, 3220, 3290, 3760, 3920, 4025, 4324, 4508, 4600, 4606, 4700, 4900, 5264, 5405, 5635, 6440, 6580, 7567, 8050, 8225, 8648, 9016, 9200, 9212, 9400, 9800, 10810, 11270, 11515, 12880, 13160, 15134, 16100, 16450, 17296, 18032, 18424, 18800, 19600, 21620, 22540, 23030, 26320, 27025, 28175, 30268, 32200, 32900, 36848, 37835, 43240, 45080, 46060, 52969, 54050, 56350, 57575, 60536, 64400, 65800, 75670, 86480, 90160, 92120, 105938, 108100, 112700, 115150, 121072, 131600, 151340, 184240, 189175, 211876, 216200, 225400, 230300, 264845, 302680, 378350, 423752, 432400, 450800, 460600, 529690, 605360, 756700, 847504, 921200, 1059380, 1324225, 1513400, 2118760, 2648450, 3026800, 4237520, 5296900, 10593800, 21187600]

約数ペア:

[(1, 21187600), (2, 10593800), (4, 5296900), (5, 4237520), (7, 3026800), (8, 2648450), (10, 2118760), (14, 1513400), (16, 1324225), (20, 1059380), (23, 921200), (25, 847504), (28, 756700), (35, 605360), (40, 529690), (46, 460600), (47, 450800), (49, 432400), (50, 423752), (56, 378350), (70, 302680), (80, 264845), (92, 230300), (94, 225400), (98, 216200), (100, 211876), (112, 189175), (115, 184240), (140, 151340), (161, 131600), (175, 121072), (184, 115150), (188, 112700), (196, 108100), (200, 105938), (230, 92120), (235, 90160), (245, 86480), (280, 75670), (322, 65800), (329, 64400), (350, 60536), (368, 57575), (376, 56350), (392, 54050), (400, 52969), (460, 46060), (470, 45080), (490, 43240), (560, 37835), (575, 36848), (644, 32900), (658, 32200), (700, 30268), (752, 28175), (784, 27025), (805, 26320), (920, 23030), (940, 22540), (980, 21620), (1081, 19600), (1127, 18800), (1150, 18424), (1175, 18032), (1225, 17296), (1288, 16450), (1316, 16100), (1400, 15134), (1610, 13160), (1645, 12880), (1840, 11515), (1880, 11270), (1960, 10810), (2162, 9800), (2254, 9400), (2300, 9212), (2303, 9200), (2350, 9016), (2450, 8648), (2576, 8225), (2632, 8050), (2800, 7567), (3220, 6580), (3290, 6440), (3760, 5635), (3920, 5405), (4025, 5264), (4324, 4900), (4508, 4700), (4600, 4606)]