2149507101320

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1\times {\mathrm{6343723}}^1$

素因数の和:6343974

約数の個数: 64

約数和(自身を含む): 4973987113920

約数和(自身を除く): 2824480012600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 172, 197, 215, 344, 394, 430, 788, 860, 985, 1576, 1720, 1970, 3940, 7880, 8471, 16942, 33884, 42355, 67768, 84710, 169420, 338840, 6343723, 12687446, 25374892, 31718615, 50749784, 63437230, 126874460, 253748920, 272780089, 545560178, 1091120356, 1249713431, 1363900445, 2182240712, 2499426862, 2727800890, 4998853724, 5455601780, 6248567155, 9997707448, 10911203560, 12497134310, 24994268620, 49988537240, 53737677533, 107475355066, 214950710132, 268688387665, 429901420264, 537376775330, 1074753550660, 2149507101320]

約数ペア:

[(1, 2149507101320), (2, 1074753550660), (4, 537376775330), (5, 429901420264), (8, 268688387665), (10, 214950710132), (20, 107475355066), (40, 53737677533), (43, 49988537240), (86, 24994268620), (172, 12497134310), (197, 10911203560), (215, 9997707448), (344, 6248567155), (394, 5455601780), (430, 4998853724), (788, 2727800890), (860, 2499426862), (985, 2182240712), (1576, 1363900445), (1720, 1249713431), (1970, 1091120356), (3940, 545560178), (7880, 272780089), (8471, 253748920), (16942, 126874460), (33884, 63437230), (42355, 50749784), (67768, 31718615), (84710, 25374892), (169420, 12687446), (338840, 6343723)]