218974920

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{42437}}^1$

素因数の和:42494

約数の個数: 64

約数和(自身を含む): 672217920

約数和(自身を除く): 453243000

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 43, 60, 86, 120, 129, 172, 215, 258, 344, 430, 516, 645, 860, 1032, 1290, 1720, 2580, 5160, 42437, 84874, 127311, 169748, 212185, 254622, 339496, 424370, 509244, 636555, 848740, 1018488, 1273110, 1697480, 1824791, 2546220, 3649582, 5092440, 5474373, 7299164, 9123955, 10948746, 14598328, 18247910, 21897492, 27371865, 36495820, 43794984, 54743730, 72991640, 109487460, 218974920]

約数ペア:

[(1, 218974920), (2, 109487460), (3, 72991640), (4, 54743730), (5, 43794984), (6, 36495820), (8, 27371865), (10, 21897492), (12, 18247910), (15, 14598328), (20, 10948746), (24, 9123955), (30, 7299164), (40, 5474373), (43, 5092440), (60, 3649582), (86, 2546220), (120, 1824791), (129, 1697480), (172, 1273110), (215, 1018488), (258, 848740), (344, 636555), (430, 509244), (516, 424370), (645, 339496), (860, 254622), (1032, 212185), (1290, 169748), (1720, 127311), (2580, 84874), (5160, 42437)]