1808622080

素因数分解:

$2^9\times 5^1\times {\mathrm{257}}^1\times {\mathrm{2749}}^1$

素因数の和:3029

約数の個数: 80

約数和(自身を含む): 4354911000

約数和(自身を除く): 2546288920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 257, 320, 512, 514, 640, 1028, 1280, 1285, 2056, 2560, 2570, 2749, 4112, 5140, 5498, 8224, 10280, 10996, 13745, 16448, 20560, 21992, 27490, 32896, 41120, 43984, 54980, 65792, 82240, 87968, 109960, 131584, 164480, 175936, 219920, 328960, 351872, 439840, 657920, 703744, 706493, 879680, 1407488, 1412986, 1759360, 2825972, 3518720, 3532465, 5651944, 7037440, 7064930, 11303888, 14129860, 22607776, 28259720, 45215552, 56519440, 90431104, 113038880, 180862208, 226077760, 361724416, 452155520, 904311040, 1808622080]

約数ペア:

[(1, 1808622080), (2, 904311040), (4, 452155520), (5, 361724416), (8, 226077760), (10, 180862208), (16, 113038880), (20, 90431104), (32, 56519440), (40, 45215552), (64, 28259720), (80, 22607776), (128, 14129860), (160, 11303888), (256, 7064930), (257, 7037440), (320, 5651944), (512, 3532465), (514, 3518720), (640, 2825972), (1028, 1759360), (1280, 1412986), (1285, 1407488), (2056, 879680), (2560, 706493), (2570, 703744), (2749, 657920), (4112, 439840), (5140, 351872), (5498, 328960), (8224, 219920), (10280, 175936), (10996, 164480), (13745, 131584), (16448, 109960), (20560, 87968), (21992, 82240), (27490, 65792), (32896, 54980), (41120, 43984)]