20785909635

素因数分解:

$3^3\times 5^1\times {\mathrm{389}}^1\times {\mathrm{397}}^1\times {\mathrm{997}}^1$

素因数の和:1797

約数の個数: 64

約数和(自身を含む): 37178294400

約数和(自身を除く): 16392384765

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 389, 397, 997, 1167, 1191, 1945, 1985, 2991, 3501, 3573, 4985, 5835, 5955, 8973, 10503, 10719, 14955, 17505, 17865, 26919, 44865, 52515, 53595, 134595, 154433, 387833, 395809, 463299, 772165, 1163499, 1187427, 1389897, 1939165, 1979045, 2316495, 3490497, 3562281, 4169691, 5817495, 5937135, 6949485, 10471491, 10686843, 17452485, 17811405, 20848455, 52357455, 53434215, 153969701, 461909103, 769848505, 1385727309, 2309545515, 4157181927, 6928636545, 20785909635]

約数ペア:

[(1, 20785909635), (3, 6928636545), (5, 4157181927), (9, 2309545515), (15, 1385727309), (27, 769848505), (45, 461909103), (135, 153969701), (389, 53434215), (397, 52357455), (997, 20848455), (1167, 17811405), (1191, 17452485), (1945, 10686843), (1985, 10471491), (2991, 6949485), (3501, 5937135), (3573, 5817495), (4985, 4169691), (5835, 3562281), (5955, 3490497), (8973, 2316495), (10503, 1979045), (10719, 1939165), (14955, 1389897), (17505, 1187427), (17865, 1163499), (26919, 772165), (44865, 463299), (52515, 395809), (53595, 387833), (134595, 154433)]