28585665

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{389}}^1$

素因数の和:494

約数の個数: 48

約数和(自身を含む): 52565760

約数和(自身を除く): 23980095

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 71, 115, 207, 213, 345, 355, 389, 639, 1035, 1065, 1167, 1633, 1945, 3195, 3501, 4899, 5835, 8165, 8947, 14697, 17505, 24495, 26841, 27619, 44735, 73485, 80523, 82857, 134205, 138095, 248571, 402615, 414285, 635237, 1242855, 1905711, 3176185, 5717133, 9528555, 28585665]

約数ペア:

[(1, 28585665), (3, 9528555), (5, 5717133), (9, 3176185), (15, 1905711), (23, 1242855), (45, 635237), (69, 414285), (71, 402615), (115, 248571), (207, 138095), (213, 134205), (345, 82857), (355, 80523), (389, 73485), (639, 44735), (1035, 27619), (1065, 26841), (1167, 24495), (1633, 17505), (1945, 14697), (3195, 8947), (3501, 8165), (4899, 5835)]