1278400

素因数分解:

$2^6\times 5^2\times {\mathrm{17}}^1\times {\mathrm{47}}^1$

素因数の和:86

約数の個数: 84

約数和(自身を含む): 3401568

約数和(自身を除く): 2123168

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 25, 32, 34, 40, 47, 50, 64, 68, 80, 85, 94, 100, 136, 160, 170, 188, 200, 235, 272, 320, 340, 376, 400, 425, 470, 544, 680, 752, 799, 800, 850, 940, 1088, 1175, 1360, 1504, 1598, 1600, 1700, 1880, 2350, 2720, 3008, 3196, 3400, 3760, 3995, 4700, 5440, 6392, 6800, 7520, 7990, 9400, 12784, 13600, 15040, 15980, 18800, 19975, 25568, 27200, 31960, 37600, 39950, 51136, 63920, 75200, 79900, 127840, 159800, 255680, 319600, 639200, 1278400]

約数ペア:

[(1, 1278400), (2, 639200), (4, 319600), (5, 255680), (8, 159800), (10, 127840), (16, 79900), (17, 75200), (20, 63920), (25, 51136), (32, 39950), (34, 37600), (40, 31960), (47, 27200), (50, 25568), (64, 19975), (68, 18800), (80, 15980), (85, 15040), (94, 13600), (100, 12784), (136, 9400), (160, 7990), (170, 7520), (188, 6800), (200, 6392), (235, 5440), (272, 4700), (320, 3995), (340, 3760), (376, 3400), (400, 3196), (425, 3008), (470, 2720), (544, 2350), (680, 1880), (752, 1700), (799, 1600), (800, 1598), (850, 1504), (940, 1360), (1088, 1175)]