18975880

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{101}}^1$

素因数の和:191

約数の個数: 128

約数和(自身を含む): 54639360

約数和(自身を除く): 35663480

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 61, 70, 77, 88, 101, 110, 122, 140, 154, 202, 220, 244, 280, 305, 308, 385, 404, 427, 440, 488, 505, 610, 616, 671, 707, 770, 808, 854, 1010, 1111, 1220, 1342, 1414, 1540, 1708, 2020, 2135, 2222, 2440, 2684, 2828, 3080, 3355, 3416, 3535, 4040, 4270, 4444, 4697, 5368, 5555, 5656, 6161, 6710, 7070, 7777, 8540, 8888, 9394, 11110, 12322, 13420, 14140, 15554, 17080, 18788, 22220, 23485, 24644, 26840, 28280, 30805, 31108, 37576, 38885, 43127, 44440, 46970, 49288, 61610, 62216, 67771, 77770, 86254, 93940, 123220, 135542, 155540, 172508, 187880, 215635, 246440, 271084, 311080, 338855, 345016, 431270, 474397, 542168, 677710, 862540, 948794, 1355420, 1725080, 1897588, 2371985, 2710840, 3795176, 4743970, 9487940, 18975880]

約数ペア:

[(1, 18975880), (2, 9487940), (4, 4743970), (5, 3795176), (7, 2710840), (8, 2371985), (10, 1897588), (11, 1725080), (14, 1355420), (20, 948794), (22, 862540), (28, 677710), (35, 542168), (40, 474397), (44, 431270), (55, 345016), (56, 338855), (61, 311080), (70, 271084), (77, 246440), (88, 215635), (101, 187880), (110, 172508), (122, 155540), (140, 135542), (154, 123220), (202, 93940), (220, 86254), (244, 77770), (280, 67771), (305, 62216), (308, 61610), (385, 49288), (404, 46970), (427, 44440), (440, 43127), (488, 38885), (505, 37576), (610, 31108), (616, 30805), (671, 28280), (707, 26840), (770, 24644), (808, 23485), (854, 22220), (1010, 18788), (1111, 17080), (1220, 15554), (1342, 14140), (1414, 13420), (1540, 12322), (1708, 11110), (2020, 9394), (2135, 8888), (2222, 8540), (2440, 7777), (2684, 7070), (2828, 6710), (3080, 6161), (3355, 5656), (3416, 5555), (3535, 5368), (4040, 4697), (4270, 4444)]