18954400

素因数分解:

$2^5\times 5^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1$

素因数の和:111

約数の個数: 144

約数和(自身を含む): 51559200

約数和(自身を除く): 32604800

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 25, 29, 32, 38, 40, 43, 50, 58, 76, 80, 86, 95, 100, 116, 145, 152, 160, 172, 190, 200, 215, 232, 290, 304, 344, 380, 400, 430, 464, 475, 551, 580, 608, 688, 725, 760, 800, 817, 860, 928, 950, 1075, 1102, 1160, 1247, 1376, 1450, 1520, 1634, 1720, 1900, 2150, 2204, 2320, 2494, 2755, 2900, 3040, 3268, 3440, 3800, 4085, 4300, 4408, 4640, 4988, 5510, 5800, 6235, 6536, 6880, 7600, 8170, 8600, 8816, 9976, 11020, 11600, 12470, 13072, 13775, 15200, 16340, 17200, 17632, 19952, 20425, 22040, 23200, 23693, 24940, 26144, 27550, 31175, 32680, 34400, 39904, 40850, 44080, 47386, 49880, 55100, 62350, 65360, 81700, 88160, 94772, 99760, 110200, 118465, 124700, 130720, 163400, 189544, 199520, 220400, 236930, 249400, 326800, 379088, 440800, 473860, 498800, 592325, 653600, 758176, 947720, 997600, 1184650, 1895440, 2369300, 3790880, 4738600, 9477200, 18954400]

約数ペア:

[(1, 18954400), (2, 9477200), (4, 4738600), (5, 3790880), (8, 2369300), (10, 1895440), (16, 1184650), (19, 997600), (20, 947720), (25, 758176), (29, 653600), (32, 592325), (38, 498800), (40, 473860), (43, 440800), (50, 379088), (58, 326800), (76, 249400), (80, 236930), (86, 220400), (95, 199520), (100, 189544), (116, 163400), (145, 130720), (152, 124700), (160, 118465), (172, 110200), (190, 99760), (200, 94772), (215, 88160), (232, 81700), (290, 65360), (304, 62350), (344, 55100), (380, 49880), (400, 47386), (430, 44080), (464, 40850), (475, 39904), (551, 34400), (580, 32680), (608, 31175), (688, 27550), (725, 26144), (760, 24940), (800, 23693), (817, 23200), (860, 22040), (928, 20425), (950, 19952), (1075, 17632), (1102, 17200), (1160, 16340), (1247, 15200), (1376, 13775), (1450, 13072), (1520, 12470), (1634, 11600), (1720, 11020), (1900, 9976), (2150, 8816), (2204, 8600), (2320, 8170), (2494, 7600), (2755, 6880), (2900, 6536), (3040, 6235), (3268, 5800), (3440, 5510), (3800, 4988), (4085, 4640), (4300, 4408)]