20185775720

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{569}}^1\times {\mathrm{80627}}^1$

素因数の和:81218

約数の個数: 64

約数和(自身を含む): 49634596800

約数和(自身を除く): 29448821080

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 569, 1138, 2276, 2845, 4552, 5690, 6259, 11380, 12518, 22760, 25036, 31295, 50072, 62590, 80627, 125180, 161254, 250360, 322508, 403135, 645016, 806270, 886897, 1612540, 1773794, 3225080, 3547588, 4434485, 7095176, 8868970, 17737940, 35475880, 45876763, 91753526, 183507052, 229383815, 367014104, 458767630, 504644393, 917535260, 1009288786, 1835070520, 2018577572, 2523221965, 4037155144, 5046443930, 10092887860, 20185775720]

約数ペア:

[(1, 20185775720), (2, 10092887860), (4, 5046443930), (5, 4037155144), (8, 2523221965), (10, 2018577572), (11, 1835070520), (20, 1009288786), (22, 917535260), (40, 504644393), (44, 458767630), (55, 367014104), (88, 229383815), (110, 183507052), (220, 91753526), (440, 45876763), (569, 35475880), (1138, 17737940), (2276, 8868970), (2845, 7095176), (4552, 4434485), (5690, 3547588), (6259, 3225080), (11380, 1773794), (12518, 1612540), (22760, 886897), (25036, 806270), (31295, 645016), (50072, 403135), (62590, 322508), (80627, 250360), (125180, 161254)]