1009916800

素因数分解:

$2^7\times 5^2\times {\mathrm{315599}}^1$

素因数の和:315623

約数の個数: 48

約数和(自身を含む): 2494818000

約数和(自身を除く): 1484901200

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 128, 160, 200, 320, 400, 640, 800, 1600, 3200, 315599, 631198, 1262396, 1577995, 2524792, 3155990, 5049584, 6311980, 7889975, 10099168, 12623960, 15779950, 20198336, 25247920, 31559900, 40396672, 50495840, 63119800, 100991680, 126239600, 201983360, 252479200, 504958400, 1009916800]

約数ペア:

[(1, 1009916800), (2, 504958400), (4, 252479200), (5, 201983360), (8, 126239600), (10, 100991680), (16, 63119800), (20, 50495840), (25, 40396672), (32, 31559900), (40, 25247920), (50, 20198336), (64, 15779950), (80, 12623960), (100, 10099168), (128, 7889975), (160, 6311980), (200, 5049584), (320, 3155990), (400, 2524792), (640, 1577995), (800, 1262396), (1600, 631198), (3200, 315599)]