81360840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61637}}^1$

素因数の和:61662

約数の個数: 64

約数和(自身を含む): 266276160

約数和(自身を除く): 184915320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61637, 123274, 184911, 246548, 308185, 369822, 493096, 616370, 678007, 739644, 924555, 1232740, 1356014, 1479288, 1849110, 2034021, 2465480, 2712028, 3390035, 3698220, 4068042, 5424056, 6780070, 7396440, 8136084, 10170105, 13560140, 16272168, 20340210, 27120280, 40680420, 81360840]

約数ペア:

[(1, 81360840), (2, 40680420), (3, 27120280), (4, 20340210), (5, 16272168), (6, 13560140), (8, 10170105), (10, 8136084), (11, 7396440), (12, 6780070), (15, 5424056), (20, 4068042), (22, 3698220), (24, 3390035), (30, 2712028), (33, 2465480), (40, 2034021), (44, 1849110), (55, 1479288), (60, 1356014), (66, 1232740), (88, 924555), (110, 739644), (120, 678007), (132, 616370), (165, 493096), (220, 369822), (264, 308185), (330, 246548), (440, 184911), (660, 123274), (1320, 61637)]