51516520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{613}}^1$

素因数の和:826

約数の個数: 64

約数和(自身を含む): 127319040

約数和(自身を除く): 75802520

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 191, 220, 382, 440, 613, 764, 955, 1226, 1528, 1910, 2101, 2452, 3065, 3820, 4202, 4904, 6130, 6743, 7640, 8404, 10505, 12260, 13486, 16808, 21010, 24520, 26972, 33715, 42020, 53944, 67430, 84040, 117083, 134860, 234166, 269720, 468332, 585415, 936664, 1170830, 1287913, 2341660, 2575826, 4683320, 5151652, 6439565, 10303304, 12879130, 25758260, 51516520]

約数ペア:

[(1, 51516520), (2, 25758260), (4, 12879130), (5, 10303304), (8, 6439565), (10, 5151652), (11, 4683320), (20, 2575826), (22, 2341660), (40, 1287913), (44, 1170830), (55, 936664), (88, 585415), (110, 468332), (191, 269720), (220, 234166), (382, 134860), (440, 117083), (613, 84040), (764, 67430), (955, 53944), (1226, 42020), (1528, 33715), (1910, 26972), (2101, 24520), (2452, 21010), (3065, 16808), (3820, 13486), (4202, 12260), (4904, 10505), (6130, 8404), (6743, 7640)]