81289560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{61583}}^1$

素因数の和:61608

約数の個数: 64

約数和(自身を含む): 266042880

約数和(自身を除く): 184753320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 88, 110, 120, 132, 165, 220, 264, 330, 440, 660, 1320, 61583, 123166, 184749, 246332, 307915, 369498, 492664, 615830, 677413, 738996, 923745, 1231660, 1354826, 1477992, 1847490, 2032239, 2463320, 2709652, 3387065, 3694980, 4064478, 5419304, 6774130, 7389960, 8128956, 10161195, 13548260, 16257912, 20322390, 27096520, 40644780, 81289560]

約数ペア:

[(1, 81289560), (2, 40644780), (3, 27096520), (4, 20322390), (5, 16257912), (6, 13548260), (8, 10161195), (10, 8128956), (11, 7389960), (12, 6774130), (15, 5419304), (20, 4064478), (22, 3694980), (24, 3387065), (30, 2709652), (33, 2463320), (40, 2032239), (44, 1847490), (55, 1477992), (60, 1354826), (66, 1231660), (88, 923745), (110, 738996), (120, 677413), (132, 615830), (165, 492664), (220, 369498), (264, 307915), (330, 246332), (440, 184749), (660, 123166), (1320, 61583)]