8911980

素因数分解:

$2^2\times 3^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{643}}^1$

素因数の和:676

約数の個数: 144

約数和(自身を含む): 33755904

約数和(自身を除く): 24843924

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 11, 12, 14, 15, 18, 20, 21, 22, 28, 30, 33, 35, 36, 42, 44, 45, 55, 60, 63, 66, 70, 77, 84, 90, 99, 105, 110, 126, 132, 140, 154, 165, 180, 198, 210, 220, 231, 252, 308, 315, 330, 385, 396, 420, 462, 495, 630, 643, 660, 693, 770, 924, 990, 1155, 1260, 1286, 1386, 1540, 1929, 1980, 2310, 2572, 2772, 3215, 3465, 3858, 4501, 4620, 5787, 6430, 6930, 7073, 7716, 9002, 9645, 11574, 12860, 13503, 13860, 14146, 18004, 19290, 21219, 22505, 23148, 27006, 28292, 28935, 35365, 38580, 40509, 42438, 45010, 49511, 54012, 57870, 63657, 67515, 70730, 81018, 84876, 90020, 99022, 106095, 115740, 127314, 135030, 141460, 148533, 162036, 198044, 202545, 212190, 247555, 254628, 270060, 297066, 318285, 405090, 424380, 445599, 495110, 594132, 636570, 742665, 810180, 891198, 990220, 1273140, 1485330, 1782396, 2227995, 2970660, 4455990, 8911980]

約数ペア:

[(1, 8911980), (2, 4455990), (3, 2970660), (4, 2227995), (5, 1782396), (6, 1485330), (7, 1273140), (9, 990220), (10, 891198), (11, 810180), (12, 742665), (14, 636570), (15, 594132), (18, 495110), (20, 445599), (21, 424380), (22, 405090), (28, 318285), (30, 297066), (33, 270060), (35, 254628), (36, 247555), (42, 212190), (44, 202545), (45, 198044), (55, 162036), (60, 148533), (63, 141460), (66, 135030), (70, 127314), (77, 115740), (84, 106095), (90, 99022), (99, 90020), (105, 84876), (110, 81018), (126, 70730), (132, 67515), (140, 63657), (154, 57870), (165, 54012), (180, 49511), (198, 45010), (210, 42438), (220, 40509), (231, 38580), (252, 35365), (308, 28935), (315, 28292), (330, 27006), (385, 23148), (396, 22505), (420, 21219), (462, 19290), (495, 18004), (630, 14146), (643, 13860), (660, 13503), (693, 12860), (770, 11574), (924, 9645), (990, 9002), (1155, 7716), (1260, 7073), (1286, 6930), (1386, 6430), (1540, 5787), (1929, 4620), (1980, 4501), (2310, 3858), (2572, 3465), (2772, 3215)]