81715732

素因数分解:

$2^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{21943}}^1$

素因数の和:21980

約数の個数: 36

約数和(自身を含む): 175113120

約数和(自身を除く): 93397388

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 49, 76, 98, 133, 196, 266, 532, 931, 1862, 3724, 21943, 43886, 87772, 153601, 307202, 416917, 614404, 833834, 1075207, 1667668, 2150414, 2918419, 4300828, 5836838, 11673676, 20428933, 40857866, 81715732]

約数ペア:

[(1, 81715732), (2, 40857866), (4, 20428933), (7, 11673676), (14, 5836838), (19, 4300828), (28, 2918419), (38, 2150414), (49, 1667668), (76, 1075207), (98, 833834), (133, 614404), (196, 416917), (266, 307202), (532, 153601), (931, 87772), (1862, 43886), (3724, 21943)]