20177958020

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1949}}^1\times {\mathrm{47059}}^1$

素因数の和:49028

約数の個数: 48

約数和(自身を含む): 46250568000

約数和(自身を除く): 26072609980

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 1949, 3898, 7796, 9745, 19490, 21439, 38980, 42878, 47059, 85756, 94118, 107195, 188236, 214390, 235295, 428780, 470590, 517649, 941180, 1035298, 2070596, 2588245, 5176490, 10352980, 91717991, 183435982, 366871964, 458589955, 917179910, 1008897901, 1834359820, 2017795802, 4035591604, 5044489505, 10088979010, 20177958020]

約数ペア:

[(1, 20177958020), (2, 10088979010), (4, 5044489505), (5, 4035591604), (10, 2017795802), (11, 1834359820), (20, 1008897901), (22, 917179910), (44, 458589955), (55, 366871964), (110, 183435982), (220, 91717991), (1949, 10352980), (3898, 5176490), (7796, 2588245), (9745, 2070596), (19490, 1035298), (21439, 941180), (38980, 517649), (42878, 470590), (47059, 428780), (85756, 235295), (94118, 214390), (107195, 188236)]