420120320

素因数分解:

$2^8\times 5^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{449}}^1$

素因数の和:530

約数の個数: 144

約数和(自身を含む): 1092722400

約数和(自身を除く): 672602080

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 32, 34, 40, 43, 64, 68, 80, 85, 86, 128, 136, 160, 170, 172, 215, 256, 272, 320, 340, 344, 430, 449, 544, 640, 680, 688, 731, 860, 898, 1088, 1280, 1360, 1376, 1462, 1720, 1796, 2176, 2245, 2720, 2752, 2924, 3440, 3592, 3655, 4352, 4490, 5440, 5504, 5848, 6880, 7184, 7310, 7633, 8980, 10880, 11008, 11696, 13760, 14368, 14620, 15266, 17960, 19307, 21760, 23392, 27520, 28736, 29240, 30532, 35920, 38165, 38614, 46784, 55040, 57472, 58480, 61064, 71840, 76330, 77228, 93568, 96535, 114944, 116960, 122128, 143680, 152660, 154456, 187136, 193070, 233920, 244256, 287360, 305320, 308912, 328219, 386140, 467840, 488512, 574720, 610640, 617824, 656438, 772280, 935680, 977024, 1221280, 1235648, 1312876, 1544560, 1641095, 1954048, 2442560, 2471296, 2625752, 3089120, 3282190, 4885120, 4942592, 5251504, 6178240, 6564380, 9770240, 10503008, 12356480, 13128760, 21006016, 24712960, 26257520, 42012032, 52515040, 84024064, 105030080, 210060160, 420120320]

約数ペア:

[(1, 420120320), (2, 210060160), (4, 105030080), (5, 84024064), (8, 52515040), (10, 42012032), (16, 26257520), (17, 24712960), (20, 21006016), (32, 13128760), (34, 12356480), (40, 10503008), (43, 9770240), (64, 6564380), (68, 6178240), (80, 5251504), (85, 4942592), (86, 4885120), (128, 3282190), (136, 3089120), (160, 2625752), (170, 2471296), (172, 2442560), (215, 1954048), (256, 1641095), (272, 1544560), (320, 1312876), (340, 1235648), (344, 1221280), (430, 977024), (449, 935680), (544, 772280), (640, 656438), (680, 617824), (688, 610640), (731, 574720), (860, 488512), (898, 467840), (1088, 386140), (1280, 328219), (1360, 308912), (1376, 305320), (1462, 287360), (1720, 244256), (1796, 233920), (2176, 193070), (2245, 187136), (2720, 154456), (2752, 152660), (2924, 143680), (3440, 122128), (3592, 116960), (3655, 114944), (4352, 96535), (4490, 93568), (5440, 77228), (5504, 76330), (5848, 71840), (6880, 61064), (7184, 58480), (7310, 57472), (7633, 55040), (8980, 46784), (10880, 38614), (11008, 38165), (11696, 35920), (13760, 30532), (14368, 29240), (14620, 28736), (15266, 27520), (17960, 23392), (19307, 21760)]