21394400

素因数分解:

$2^5\times 5^2\times {\mathrm{47}}^1\times {\mathrm{569}}^1$

素因数の和:636

約数の個数: 72

約数和(自身を含む): 53434080

約数和(自身を除く): 32039680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 47, 50, 80, 94, 100, 160, 188, 200, 235, 376, 400, 470, 569, 752, 800, 940, 1138, 1175, 1504, 1880, 2276, 2350, 2845, 3760, 4552, 4700, 5690, 7520, 9104, 9400, 11380, 14225, 18208, 18800, 22760, 26743, 28450, 37600, 45520, 53486, 56900, 91040, 106972, 113800, 133715, 213944, 227600, 267430, 427888, 455200, 534860, 668575, 855776, 1069720, 1337150, 2139440, 2674300, 4278880, 5348600, 10697200, 21394400]

約数ペア:

[(1, 21394400), (2, 10697200), (4, 5348600), (5, 4278880), (8, 2674300), (10, 2139440), (16, 1337150), (20, 1069720), (25, 855776), (32, 668575), (40, 534860), (47, 455200), (50, 427888), (80, 267430), (94, 227600), (100, 213944), (160, 133715), (188, 113800), (200, 106972), (235, 91040), (376, 56900), (400, 53486), (470, 45520), (569, 37600), (752, 28450), (800, 26743), (940, 22760), (1138, 18800), (1175, 18208), (1504, 14225), (1880, 11380), (2276, 9400), (2350, 9104), (2845, 7520), (3760, 5690), (4552, 4700)]