66572440

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2131}}^1$

素因数の和:2224

約数の個数: 64

約数和(自身を含む): 165784320

約数和(自身を除く): 99211880

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 71, 88, 110, 142, 220, 284, 355, 440, 568, 710, 781, 1420, 1562, 2131, 2840, 3124, 3905, 4262, 6248, 7810, 8524, 10655, 15620, 17048, 21310, 23441, 31240, 42620, 46882, 85240, 93764, 117205, 151301, 187528, 234410, 302602, 468820, 605204, 756505, 937640, 1210408, 1513010, 1664311, 3026020, 3328622, 6052040, 6657244, 8321555, 13314488, 16643110, 33286220, 66572440]

約数ペア:

[(1, 66572440), (2, 33286220), (4, 16643110), (5, 13314488), (8, 8321555), (10, 6657244), (11, 6052040), (20, 3328622), (22, 3026020), (40, 1664311), (44, 1513010), (55, 1210408), (71, 937640), (88, 756505), (110, 605204), (142, 468820), (220, 302602), (284, 234410), (355, 187528), (440, 151301), (568, 117205), (710, 93764), (781, 85240), (1420, 46882), (1562, 42620), (2131, 31240), (2840, 23441), (3124, 21310), (3905, 17048), (4262, 15620), (6248, 10655), (7810, 8524)]