18441240

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{239}}^1\times {\mathrm{643}}^1$

素因数の和:896

約数の個数: 64

約数和(自身を含む): 55641600

約数和(自身を除く): 37200360

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 239, 478, 643, 717, 956, 1195, 1286, 1434, 1912, 1929, 2390, 2572, 2868, 3215, 3585, 3858, 4780, 5144, 5736, 6430, 7170, 7716, 9560, 9645, 12860, 14340, 15432, 19290, 25720, 28680, 38580, 77160, 153677, 307354, 461031, 614708, 768385, 922062, 1229416, 1536770, 1844124, 2305155, 3073540, 3688248, 4610310, 6147080, 9220620, 18441240]

約数ペア:

[(1, 18441240), (2, 9220620), (3, 6147080), (4, 4610310), (5, 3688248), (6, 3073540), (8, 2305155), (10, 1844124), (12, 1536770), (15, 1229416), (20, 922062), (24, 768385), (30, 614708), (40, 461031), (60, 307354), (120, 153677), (239, 77160), (478, 38580), (643, 28680), (717, 25720), (956, 19290), (1195, 15432), (1286, 14340), (1434, 12860), (1912, 9645), (1929, 9560), (2390, 7716), (2572, 7170), (2868, 6430), (3215, 5736), (3585, 5144), (3858, 4780)]