20195120

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{433}}^1$

素因数の和:510

約数の個数: 80

約数和(自身を含む): 52309152

約数和(自身を除く): 32114032

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 53, 55, 80, 88, 106, 110, 176, 212, 220, 265, 424, 433, 440, 530, 583, 848, 866, 880, 1060, 1166, 1732, 2120, 2165, 2332, 2915, 3464, 4240, 4330, 4664, 4763, 5830, 6928, 8660, 9328, 9526, 11660, 17320, 19052, 22949, 23320, 23815, 34640, 38104, 45898, 46640, 47630, 76208, 91796, 95260, 114745, 183592, 190520, 229490, 252439, 367184, 381040, 458980, 504878, 917960, 1009756, 1262195, 1835920, 2019512, 2524390, 4039024, 5048780, 10097560, 20195120]

約数ペア:

[(1, 20195120), (2, 10097560), (4, 5048780), (5, 4039024), (8, 2524390), (10, 2019512), (11, 1835920), (16, 1262195), (20, 1009756), (22, 917960), (40, 504878), (44, 458980), (53, 381040), (55, 367184), (80, 252439), (88, 229490), (106, 190520), (110, 183592), (176, 114745), (212, 95260), (220, 91796), (265, 76208), (424, 47630), (433, 46640), (440, 45898), (530, 38104), (583, 34640), (848, 23815), (866, 23320), (880, 22949), (1060, 19052), (1166, 17320), (1732, 11660), (2120, 9526), (2165, 9328), (2332, 8660), (2915, 6928), (3464, 5830), (4240, 4763), (4330, 4664)]