79643600

素因数分解:

$2^4\times 5^2\times {\mathrm{199109}}^1$

素因数の和:199127

約数の個数: 30

約数和(自身を含む): 191344710

約数和(自身を除く): 111701110

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 199109, 398218, 796436, 995545, 1592872, 1991090, 3185744, 3982180, 4977725, 7964360, 9955450, 15928720, 19910900, 39821800, 79643600]

約数ペア:

[(1, 79643600), (2, 39821800), (4, 19910900), (5, 15928720), (8, 9955450), (10, 7964360), (16, 4977725), (20, 3982180), (25, 3185744), (40, 1991090), (50, 1592872), (80, 995545), (100, 796436), (200, 398218), (400, 199109)]