20804485240

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6754703}}^1$

素因数の和:6754732

約数の個数: 64

約数和(自身を含む): 58360642560

約数和(自身を除く): 37556157320

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6754703, 13509406, 27018812, 33773515, 47282921, 54037624, 67547030, 74301733, 94565842, 135094060, 148603466, 189131684, 236414605, 270188120, 297206932, 371508665, 378263368, 472829210, 520112131, 594413864, 743017330, 945658420, 1040224262, 1486034660, 1891316840, 2080448524, 2600560655, 2972069320, 4160897048, 5201121310, 10402242620, 20804485240]

約数ペア:

[(1, 20804485240), (2, 10402242620), (4, 5201121310), (5, 4160897048), (7, 2972069320), (8, 2600560655), (10, 2080448524), (11, 1891316840), (14, 1486034660), (20, 1040224262), (22, 945658420), (28, 743017330), (35, 594413864), (40, 520112131), (44, 472829210), (55, 378263368), (56, 371508665), (70, 297206932), (77, 270188120), (88, 236414605), (110, 189131684), (140, 148603466), (154, 135094060), (220, 94565842), (280, 74301733), (308, 67547030), (385, 54037624), (440, 47282921), (616, 33773515), (770, 27018812), (1540, 13509406), (3080, 6754703)]