641560000

素因数分解:

$2^6\times 5^4\times {\mathrm{43}}^1\times {\mathrm{373}}^1$

素因数の和:448

約数の個数: 140

約数和(自身を含む): 1632221272

約数和(自身を除く): 990661272

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 43, 50, 64, 80, 86, 100, 125, 160, 172, 200, 215, 250, 320, 344, 373, 400, 430, 500, 625, 688, 746, 800, 860, 1000, 1075, 1250, 1376, 1492, 1600, 1720, 1865, 2000, 2150, 2500, 2752, 2984, 3440, 3730, 4000, 4300, 5000, 5375, 5968, 6880, 7460, 8000, 8600, 9325, 10000, 10750, 11936, 13760, 14920, 16039, 17200, 18650, 20000, 21500, 23872, 26875, 29840, 32078, 34400, 37300, 40000, 43000, 46625, 53750, 59680, 64156, 68800, 74600, 80195, 86000, 93250, 107500, 119360, 128312, 149200, 160390, 172000, 186500, 215000, 233125, 256624, 298400, 320780, 344000, 373000, 400975, 430000, 466250, 513248, 596800, 641560, 746000, 801950, 860000, 932500, 1026496, 1283120, 1492000, 1603900, 1720000, 1865000, 2004875, 2566240, 2984000, 3207800, 3730000, 4009750, 5132480, 6415600, 7460000, 8019500, 10024375, 12831200, 14920000, 16039000, 20048750, 25662400, 32078000, 40097500, 64156000, 80195000, 128312000, 160390000, 320780000, 641560000]

約数ペア:

[(1, 641560000), (2, 320780000), (4, 160390000), (5, 128312000), (8, 80195000), (10, 64156000), (16, 40097500), (20, 32078000), (25, 25662400), (32, 20048750), (40, 16039000), (43, 14920000), (50, 12831200), (64, 10024375), (80, 8019500), (86, 7460000), (100, 6415600), (125, 5132480), (160, 4009750), (172, 3730000), (200, 3207800), (215, 2984000), (250, 2566240), (320, 2004875), (344, 1865000), (373, 1720000), (400, 1603900), (430, 1492000), (500, 1283120), (625, 1026496), (688, 932500), (746, 860000), (800, 801950), (860, 746000), (1000, 641560), (1075, 596800), (1250, 513248), (1376, 466250), (1492, 430000), (1600, 400975), (1720, 373000), (1865, 344000), (2000, 320780), (2150, 298400), (2500, 256624), (2752, 233125), (2984, 215000), (3440, 186500), (3730, 172000), (4000, 160390), (4300, 149200), (5000, 128312), (5375, 119360), (5968, 107500), (6880, 93250), (7460, 86000), (8000, 80195), (8600, 74600), (9325, 68800), (10000, 64156), (10750, 59680), (11936, 53750), (13760, 46625), (14920, 43000), (16039, 40000), (17200, 37300), (18650, 34400), (20000, 32078), (21500, 29840), (23872, 26875)]