215770160

素因数分解:

$2^4\times 5^1\times {\mathrm{197}}^1\times {\mathrm{13691}}^1$

素因数の和:13901

約数の個数: 40

約数和(自身を含む): 504248976

約数和(自身を除く): 288478816

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 197, 394, 788, 985, 1576, 1970, 3152, 3940, 7880, 13691, 15760, 27382, 54764, 68455, 109528, 136910, 219056, 273820, 547640, 1095280, 2697127, 5394254, 10788508, 13485635, 21577016, 26971270, 43154032, 53942540, 107885080, 215770160]

約数ペア:

[(1, 215770160), (2, 107885080), (4, 53942540), (5, 43154032), (8, 26971270), (10, 21577016), (16, 13485635), (20, 10788508), (40, 5394254), (80, 2697127), (197, 1095280), (394, 547640), (788, 273820), (985, 219056), (1576, 136910), (1970, 109528), (3152, 68455), (3940, 54764), (7880, 27382), (13691, 15760)]