16990880

素因数分解:

$2^5\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1031}}^1$

素因数の和:1149

約数の個数: 48

約数和(自身を含む): 40569984

約数和(自身を除く): 23579104

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 103, 160, 206, 412, 515, 824, 1030, 1031, 1648, 2060, 2062, 3296, 4120, 4124, 5155, 8240, 8248, 10310, 16480, 16496, 20620, 32992, 41240, 82480, 106193, 164960, 212386, 424772, 530965, 849544, 1061930, 1699088, 2123860, 3398176, 4247720, 8495440, 16990880]

約数ペア:

[(1, 16990880), (2, 8495440), (4, 4247720), (5, 3398176), (8, 2123860), (10, 1699088), (16, 1061930), (20, 849544), (32, 530965), (40, 424772), (80, 212386), (103, 164960), (160, 106193), (206, 82480), (412, 41240), (515, 32992), (824, 20620), (1030, 16496), (1031, 16480), (1648, 10310), (2060, 8248), (2062, 8240), (3296, 5155), (4120, 4124)]