71296720

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{81019}}^1$

素因数の和:81043

約数の個数: 40

約数和(自身を含む): 180836640

約数和(自身を除く): 109539920

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 880, 81019, 162038, 324076, 405095, 648152, 810190, 891209, 1296304, 1620380, 1782418, 3240760, 3564836, 4456045, 6481520, 7129672, 8912090, 14259344, 17824180, 35648360, 71296720]

約数ペア:

[(1, 71296720), (2, 35648360), (4, 17824180), (5, 14259344), (8, 8912090), (10, 7129672), (11, 6481520), (16, 4456045), (20, 3564836), (22, 3240760), (40, 1782418), (44, 1620380), (55, 1296304), (80, 891209), (88, 810190), (110, 648152), (176, 405095), (220, 324076), (440, 162038), (880, 81019)]