20001776

素因数分解:

$2^4\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{229}}^1$

素因数の和:393

約数の個数: 40

約数和(自身を含む): 40042080

約数和(自身を除く): 20040304

約数列:

[1, 2, 4, 8, 16, 53, 103, 106, 206, 212, 229, 412, 424, 458, 824, 848, 916, 1648, 1832, 3664, 5459, 10918, 12137, 21836, 23587, 24274, 43672, 47174, 48548, 87344, 94348, 97096, 188696, 194192, 377392, 1250111, 2500222, 5000444, 10000888, 20001776]

約数ペア:

[(1, 20001776), (2, 10000888), (4, 5000444), (8, 2500222), (16, 1250111), (53, 377392), (103, 194192), (106, 188696), (206, 97096), (212, 94348), (229, 87344), (412, 48548), (424, 47174), (458, 43672), (824, 24274), (848, 23587), (916, 21836), (1648, 12137), (1832, 10918), (3664, 5459)]