203988407720

素因数分解:

$2^3\times 5^1\times {\mathrm{509}}^1\times {\mathrm{1039}}^1\times {\mathrm{9643}}^1$

素因数の和:11202

約数の個数: 64

約数和(自身を含む): 460365984000

約数和(自身を除く): 256377576280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 509, 1018, 1039, 2036, 2078, 2545, 4072, 4156, 5090, 5195, 8312, 9643, 10180, 10390, 19286, 20360, 20780, 38572, 41560, 48215, 77144, 96430, 192860, 385720, 528851, 1057702, 2115404, 2644255, 4230808, 4908287, 5288510, 9816574, 10019077, 10577020, 19633148, 20038154, 21154040, 24541435, 39266296, 40076308, 49082870, 50095385, 80152616, 98165740, 100190770, 196331480, 200381540, 400763080, 5099710193, 10199420386, 20398840772, 25498550965, 40797681544, 50997101930, 101994203860, 203988407720]

約数ペア:

[(1, 203988407720), (2, 101994203860), (4, 50997101930), (5, 40797681544), (8, 25498550965), (10, 20398840772), (20, 10199420386), (40, 5099710193), (509, 400763080), (1018, 200381540), (1039, 196331480), (2036, 100190770), (2078, 98165740), (2545, 80152616), (4072, 50095385), (4156, 49082870), (5090, 40076308), (5195, 39266296), (8312, 24541435), (9643, 21154040), (10180, 20038154), (10390, 19633148), (19286, 10577020), (20360, 10019077), (20780, 9816574), (38572, 5288510), (41560, 4908287), (48215, 4230808), (77144, 2644255), (96430, 2115404), (192860, 1057702), (385720, 528851)]