81051990

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{83}}^1\times {\mathrm{757}}^1$

素因数の和:893

約数の個数: 64

約数和(自身を含む): 201712896

約数和(自身を除く): 120660906

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 43, 83, 86, 129, 166, 215, 249, 258, 415, 430, 498, 645, 757, 830, 1245, 1290, 1514, 2271, 2490, 3569, 3785, 4542, 7138, 7570, 10707, 11355, 17845, 21414, 22710, 32551, 35690, 53535, 62831, 65102, 97653, 107070, 125662, 162755, 188493, 195306, 314155, 325510, 376986, 488265, 628310, 942465, 976530, 1884930, 2701733, 5403466, 8105199, 13508665, 16210398, 27017330, 40525995, 81051990]

約数ペア:

[(1, 81051990), (2, 40525995), (3, 27017330), (5, 16210398), (6, 13508665), (10, 8105199), (15, 5403466), (30, 2701733), (43, 1884930), (83, 976530), (86, 942465), (129, 628310), (166, 488265), (215, 376986), (249, 325510), (258, 314155), (415, 195306), (430, 188493), (498, 162755), (645, 125662), (757, 107070), (830, 97653), (1245, 65102), (1290, 62831), (1514, 53535), (2271, 35690), (2490, 32551), (3569, 22710), (3785, 21414), (4542, 17845), (7138, 11355), (7570, 10707)]