7638840

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:674

約数の個数: 128

約数和(自身を含む): 27820800

約数和(自身を除く): 20181960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 216, 220, 264, 270, 297, 330, 360, 396, 440, 495, 540, 594, 643, 660, 792, 990, 1080, 1188, 1286, 1320, 1485, 1929, 1980, 2376, 2572, 2970, 3215, 3858, 3960, 5144, 5787, 5940, 6430, 7073, 7716, 9645, 11574, 11880, 12860, 14146, 15432, 17361, 19290, 21219, 23148, 25720, 28292, 28935, 34722, 35365, 38580, 42438, 46296, 56584, 57870, 63657, 69444, 70730, 77160, 84876, 86805, 106095, 115740, 127314, 138888, 141460, 169752, 173610, 190971, 212190, 231480, 254628, 282920, 318285, 347220, 381942, 424380, 509256, 636570, 694440, 763884, 848760, 954855, 1273140, 1527768, 1909710, 2546280, 3819420, 7638840]

約数ペア:

[(1, 7638840), (2, 3819420), (3, 2546280), (4, 1909710), (5, 1527768), (6, 1273140), (8, 954855), (9, 848760), (10, 763884), (11, 694440), (12, 636570), (15, 509256), (18, 424380), (20, 381942), (22, 347220), (24, 318285), (27, 282920), (30, 254628), (33, 231480), (36, 212190), (40, 190971), (44, 173610), (45, 169752), (54, 141460), (55, 138888), (60, 127314), (66, 115740), (72, 106095), (88, 86805), (90, 84876), (99, 77160), (108, 70730), (110, 69444), (120, 63657), (132, 57870), (135, 56584), (165, 46296), (180, 42438), (198, 38580), (216, 35365), (220, 34722), (264, 28935), (270, 28292), (297, 25720), (330, 23148), (360, 21219), (396, 19290), (440, 17361), (495, 15432), (540, 14146), (594, 12860), (643, 11880), (660, 11574), (792, 9645), (990, 7716), (1080, 7073), (1188, 6430), (1286, 5940), (1320, 5787), (1485, 5144), (1929, 3960), (1980, 3858), (2376, 3215), (2572, 2970)]