31381680

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{11887}}^1$

素因数の和:11914

約数の個数: 80

約数和(自身を含む): 106136064

約数和(自身を除く): 74754384

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 11887, 23774, 35661, 47548, 59435, 71322, 95096, 118870, 130757, 142644, 178305, 190192, 237740, 261514, 285288, 356610, 392271, 475480, 523028, 570576, 653785, 713220, 784542, 950960, 1046056, 1307570, 1426440, 1569084, 1961355, 2092112, 2615140, 2852880, 3138168, 3922710, 5230280, 6276336, 7845420, 10460560, 15690840, 31381680]

約数ペア:

[(1, 31381680), (2, 15690840), (3, 10460560), (4, 7845420), (5, 6276336), (6, 5230280), (8, 3922710), (10, 3138168), (11, 2852880), (12, 2615140), (15, 2092112), (16, 1961355), (20, 1569084), (22, 1426440), (24, 1307570), (30, 1046056), (33, 950960), (40, 784542), (44, 713220), (48, 653785), (55, 570576), (60, 523028), (66, 475480), (80, 392271), (88, 356610), (110, 285288), (120, 261514), (132, 237740), (165, 190192), (176, 178305), (220, 142644), (240, 130757), (264, 118870), (330, 95096), (440, 71322), (528, 59435), (660, 47548), (880, 35661), (1320, 23774), (2640, 11887)]