18421760

素因数分解:

$2^{11}\times 5^1\times 7^1\times {\mathrm{257}}^1$

素因数の和:291

約数の個数: 96

約数和(自身を含む): 50712480

約数和(自身を除く): 32290720

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 70, 80, 112, 128, 140, 160, 224, 256, 257, 280, 320, 448, 512, 514, 560, 640, 896, 1024, 1028, 1120, 1280, 1285, 1792, 1799, 2048, 2056, 2240, 2560, 2570, 3584, 3598, 4112, 4480, 5120, 5140, 7168, 7196, 8224, 8960, 8995, 10240, 10280, 14336, 14392, 16448, 17920, 17990, 20560, 28784, 32896, 35840, 35980, 41120, 57568, 65792, 71680, 71960, 82240, 115136, 131584, 143920, 164480, 230272, 263168, 287840, 328960, 460544, 526336, 575680, 657920, 921088, 1151360, 1315840, 1842176, 2302720, 2631680, 3684352, 4605440, 9210880, 18421760]

約数ペア:

[(1, 18421760), (2, 9210880), (4, 4605440), (5, 3684352), (7, 2631680), (8, 2302720), (10, 1842176), (14, 1315840), (16, 1151360), (20, 921088), (28, 657920), (32, 575680), (35, 526336), (40, 460544), (56, 328960), (64, 287840), (70, 263168), (80, 230272), (112, 164480), (128, 143920), (140, 131584), (160, 115136), (224, 82240), (256, 71960), (257, 71680), (280, 65792), (320, 57568), (448, 41120), (512, 35980), (514, 35840), (560, 32896), (640, 28784), (896, 20560), (1024, 17990), (1028, 17920), (1120, 16448), (1280, 14392), (1285, 14336), (1792, 10280), (1799, 10240), (2048, 8995), (2056, 8960), (2240, 8224), (2560, 7196), (2570, 7168), (3584, 5140), (3598, 5120), (4112, 4480)]