18994360

素因数分解:

$2^3\times 5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{881}}^1$

素因数の和:917

約数の個数: 96

約数和(自身を含む): 54295920

約数和(自身を除く): 35301560

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 49, 55, 56, 70, 77, 88, 98, 110, 140, 154, 196, 220, 245, 280, 308, 385, 392, 440, 490, 539, 616, 770, 881, 980, 1078, 1540, 1762, 1960, 2156, 2695, 3080, 3524, 4312, 4405, 5390, 6167, 7048, 8810, 9691, 10780, 12334, 17620, 19382, 21560, 24668, 30835, 35240, 38764, 43169, 48455, 49336, 61670, 67837, 77528, 86338, 96910, 123340, 135674, 172676, 193820, 215845, 246680, 271348, 339185, 345352, 387640, 431690, 474859, 542696, 678370, 863380, 949718, 1356740, 1726760, 1899436, 2374295, 2713480, 3798872, 4748590, 9497180, 18994360]

約数ペア:

[(1, 18994360), (2, 9497180), (4, 4748590), (5, 3798872), (7, 2713480), (8, 2374295), (10, 1899436), (11, 1726760), (14, 1356740), (20, 949718), (22, 863380), (28, 678370), (35, 542696), (40, 474859), (44, 431690), (49, 387640), (55, 345352), (56, 339185), (70, 271348), (77, 246680), (88, 215845), (98, 193820), (110, 172676), (140, 135674), (154, 123340), (196, 96910), (220, 86338), (245, 77528), (280, 67837), (308, 61670), (385, 49336), (392, 48455), (440, 43169), (490, 38764), (539, 35240), (616, 30835), (770, 24668), (881, 21560), (980, 19382), (1078, 17620), (1540, 12334), (1762, 10780), (1960, 9691), (2156, 8810), (2695, 7048), (3080, 6167), (3524, 5390), (4312, 4405)]