21286720

素因数分解:

$2^6\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1$

素因数の和:97

約数の個数: 224

約数和(自身を含む): 67592448

約数和(自身を除く): 46305728

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 17, 20, 26, 28, 32, 34, 35, 40, 43, 52, 56, 64, 65, 68, 70, 80, 85, 86, 91, 104, 112, 119, 130, 136, 140, 160, 170, 172, 182, 208, 215, 221, 224, 238, 260, 272, 280, 301, 320, 340, 344, 364, 416, 430, 442, 448, 455, 476, 520, 544, 559, 560, 595, 602, 680, 688, 728, 731, 832, 860, 884, 910, 952, 1040, 1088, 1105, 1118, 1120, 1190, 1204, 1360, 1376, 1456, 1462, 1505, 1547, 1720, 1768, 1820, 1904, 2080, 2210, 2236, 2240, 2380, 2408, 2720, 2752, 2795, 2912, 2924, 3010, 3094, 3440, 3536, 3640, 3655, 3808, 3913, 4160, 4420, 4472, 4760, 4816, 5117, 5440, 5590, 5824, 5848, 6020, 6188, 6880, 7072, 7280, 7310, 7616, 7735, 7826, 8840, 8944, 9503, 9520, 9632, 10234, 11180, 11696, 12040, 12376, 13760, 14144, 14560, 14620, 15470, 15652, 17680, 17888, 19006, 19040, 19264, 19565, 20468, 22360, 23392, 24080, 24752, 25585, 29120, 29240, 30940, 31304, 35360, 35776, 38012, 38080, 39130, 40936, 44720, 46784, 47515, 48160, 49504, 51170, 58480, 61880, 62608, 66521, 70720, 76024, 78260, 81872, 89440, 95030, 96320, 99008, 102340, 116960, 123760, 125216, 133042, 152048, 156520, 163744, 178880, 190060, 204680, 233920, 247520, 250432, 266084, 304096, 313040, 327488, 332605, 380120, 409360, 495040, 532168, 608192, 626080, 665210, 760240, 818720, 1064336, 1252160, 1330420, 1520480, 1637440, 2128672, 2660840, 3040960, 4257344, 5321680, 10643360, 21286720]

約数ペア:

[(1, 21286720), (2, 10643360), (4, 5321680), (5, 4257344), (7, 3040960), (8, 2660840), (10, 2128672), (13, 1637440), (14, 1520480), (16, 1330420), (17, 1252160), (20, 1064336), (26, 818720), (28, 760240), (32, 665210), (34, 626080), (35, 608192), (40, 532168), (43, 495040), (52, 409360), (56, 380120), (64, 332605), (65, 327488), (68, 313040), (70, 304096), (80, 266084), (85, 250432), (86, 247520), (91, 233920), (104, 204680), (112, 190060), (119, 178880), (130, 163744), (136, 156520), (140, 152048), (160, 133042), (170, 125216), (172, 123760), (182, 116960), (208, 102340), (215, 99008), (221, 96320), (224, 95030), (238, 89440), (260, 81872), (272, 78260), (280, 76024), (301, 70720), (320, 66521), (340, 62608), (344, 61880), (364, 58480), (416, 51170), (430, 49504), (442, 48160), (448, 47515), (455, 46784), (476, 44720), (520, 40936), (544, 39130), (559, 38080), (560, 38012), (595, 35776), (602, 35360), (680, 31304), (688, 30940), (728, 29240), (731, 29120), (832, 25585), (860, 24752), (884, 24080), (910, 23392), (952, 22360), (1040, 20468), (1088, 19565), (1105, 19264), (1118, 19040), (1120, 19006), (1190, 17888), (1204, 17680), (1360, 15652), (1376, 15470), (1456, 14620), (1462, 14560), (1505, 14144), (1547, 13760), (1720, 12376), (1768, 12040), (1820, 11696), (1904, 11180), (2080, 10234), (2210, 9632), (2236, 9520), (2240, 9503), (2380, 8944), (2408, 8840), (2720, 7826), (2752, 7735), (2795, 7616), (2912, 7310), (2924, 7280), (3010, 7072), (3094, 6880), (3440, 6188), (3536, 6020), (3640, 5848), (3655, 5824), (3808, 5590), (3913, 5440), (4160, 5117), (4420, 4816), (4472, 4760)]