18811980

素因数分解:

$2^2\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{3167}}^1$

素因数の和:3196

約数の個数: 96

約数和(自身を含む): 63866880

約数和(自身を除く): 45054900

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 11, 12, 15, 18, 20, 22, 27, 30, 33, 36, 44, 45, 54, 55, 60, 66, 90, 99, 108, 110, 132, 135, 165, 180, 198, 220, 270, 297, 330, 396, 495, 540, 594, 660, 990, 1188, 1485, 1980, 2970, 3167, 5940, 6334, 9501, 12668, 15835, 19002, 28503, 31670, 34837, 38004, 47505, 57006, 63340, 69674, 85509, 95010, 104511, 114012, 139348, 142515, 171018, 174185, 190020, 209022, 285030, 313533, 342036, 348370, 418044, 427545, 522555, 570060, 627066, 696740, 855090, 940599, 1045110, 1254132, 1567665, 1710180, 1881198, 2090220, 3135330, 3762396, 4702995, 6270660, 9405990, 18811980]

約数ペア:

[(1, 18811980), (2, 9405990), (3, 6270660), (4, 4702995), (5, 3762396), (6, 3135330), (9, 2090220), (10, 1881198), (11, 1710180), (12, 1567665), (15, 1254132), (18, 1045110), (20, 940599), (22, 855090), (27, 696740), (30, 627066), (33, 570060), (36, 522555), (44, 427545), (45, 418044), (54, 348370), (55, 342036), (60, 313533), (66, 285030), (90, 209022), (99, 190020), (108, 174185), (110, 171018), (132, 142515), (135, 139348), (165, 114012), (180, 104511), (198, 95010), (220, 85509), (270, 69674), (297, 63340), (330, 57006), (396, 47505), (495, 38004), (540, 34837), (594, 31670), (660, 28503), (990, 19002), (1188, 15835), (1485, 12668), (1980, 9501), (2970, 6334), (3167, 5940)]