20180748

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{4903}}^1$

素因数の和:4931

約数の個数: 48

約数和(自身を含む): 54924800

約数和(自身を除く): 34744052

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 4903, 9806, 14709, 19612, 29418, 34321, 58836, 68642, 102963, 137284, 205926, 240247, 411852, 480494, 720741, 960988, 1441482, 1681729, 2882964, 3363458, 5045187, 6726916, 10090374, 20180748]

約数ペア:

[(1, 20180748), (2, 10090374), (3, 6726916), (4, 5045187), (6, 3363458), (7, 2882964), (12, 1681729), (14, 1441482), (21, 960988), (28, 720741), (42, 480494), (49, 411852), (84, 240247), (98, 205926), (147, 137284), (196, 102963), (294, 68642), (343, 58836), (588, 34321), (686, 29418), (1029, 19612), (1372, 14709), (2058, 9806), (4116, 4903)]