128747640

素因数分解:

$2^3\times 3^1\times 5^1\times 7^1\times {\mathrm{153271}}^1$

素因数の和:153292

約数の個数: 64

約数和(自身を含む): 441423360

約数和(自身を除く): 312675720

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 20, 21, 24, 28, 30, 35, 40, 42, 56, 60, 70, 84, 105, 120, 140, 168, 210, 280, 420, 840, 153271, 306542, 459813, 613084, 766355, 919626, 1072897, 1226168, 1532710, 1839252, 2145794, 2299065, 3065420, 3218691, 3678504, 4291588, 4598130, 5364485, 6130840, 6437382, 8583176, 9196260, 10728970, 12874764, 16093455, 18392520, 21457940, 25749528, 32186910, 42915880, 64373820, 128747640]

約数ペア:

[(1, 128747640), (2, 64373820), (3, 42915880), (4, 32186910), (5, 25749528), (6, 21457940), (7, 18392520), (8, 16093455), (10, 12874764), (12, 10728970), (14, 9196260), (15, 8583176), (20, 6437382), (21, 6130840), (24, 5364485), (28, 4598130), (30, 4291588), (35, 3678504), (40, 3218691), (42, 3065420), (56, 2299065), (60, 2145794), (70, 1839252), (84, 1532710), (105, 1226168), (120, 1072897), (140, 919626), (168, 766355), (210, 613084), (280, 459813), (420, 306542), (840, 153271)]