21165522800

素因数分解:

$2^4\times 5^2\times {\mathrm{31}}^1\times {\mathrm{1706897}}^1$

素因数の和:1706946

約数の個数: 60

約数和(自身を含む): 52490527296

約数和(自身を除く): 31325004496

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 31, 40, 50, 62, 80, 100, 124, 155, 200, 248, 310, 400, 496, 620, 775, 1240, 1550, 2480, 3100, 6200, 12400, 1706897, 3413794, 6827588, 8534485, 13655176, 17068970, 27310352, 34137940, 42672425, 52913807, 68275880, 85344850, 105827614, 136551760, 170689700, 211655228, 264569035, 341379400, 423310456, 529138070, 682758800, 846620912, 1058276140, 1322845175, 2116552280, 2645690350, 4233104560, 5291380700, 10582761400, 21165522800]

約数ペア:

[(1, 21165522800), (2, 10582761400), (4, 5291380700), (5, 4233104560), (8, 2645690350), (10, 2116552280), (16, 1322845175), (20, 1058276140), (25, 846620912), (31, 682758800), (40, 529138070), (50, 423310456), (62, 341379400), (80, 264569035), (100, 211655228), (124, 170689700), (155, 136551760), (200, 105827614), (248, 85344850), (310, 68275880), (400, 52913807), (496, 42672425), (620, 34137940), (775, 27310352), (1240, 17068970), (1550, 13655176), (2480, 8534485), (3100, 6827588), (6200, 3413794), (12400, 1706897)]