4247720

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{1031}}^1$

素因数の和:1145

約数の個数: 32

約数和(自身を含む): 9659520

約数和(自身を除く): 5411800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 1031, 2060, 2062, 4120, 4124, 5155, 8248, 10310, 20620, 41240, 106193, 212386, 424772, 530965, 849544, 1061930, 2123860, 4247720]

約数ペア:

[(1, 4247720), (2, 2123860), (4, 1061930), (5, 849544), (8, 530965), (10, 424772), (20, 212386), (40, 106193), (103, 41240), (206, 20620), (412, 10310), (515, 8248), (824, 5155), (1030, 4124), (1031, 4120), (2060, 2062)]