20596760

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{661}}^1$

素因数の和:732

約数の個数: 64

約数和(自身を含む): 50047200

約数和(自身を除く): 29450440

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 41, 76, 82, 95, 152, 164, 190, 205, 328, 380, 410, 661, 760, 779, 820, 1322, 1558, 1640, 2644, 3116, 3305, 3895, 5288, 6232, 6610, 7790, 12559, 13220, 15580, 25118, 26440, 27101, 31160, 50236, 54202, 62795, 100472, 108404, 125590, 135505, 216808, 251180, 271010, 502360, 514919, 542020, 1029838, 1084040, 2059676, 2574595, 4119352, 5149190, 10298380, 20596760]

約数ペア:

[(1, 20596760), (2, 10298380), (4, 5149190), (5, 4119352), (8, 2574595), (10, 2059676), (19, 1084040), (20, 1029838), (38, 542020), (40, 514919), (41, 502360), (76, 271010), (82, 251180), (95, 216808), (152, 135505), (164, 125590), (190, 108404), (205, 100472), (328, 62795), (380, 54202), (410, 50236), (661, 31160), (760, 27101), (779, 26440), (820, 25118), (1322, 15580), (1558, 13220), (1640, 12559), (2644, 7790), (3116, 6610), (3305, 6232), (3895, 5288)]