205770880

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{1997}}^1$

素因数の和:2046

約数の個数: 128

約数和(自身を含む): 586932480

約数和(自身を除く): 381161600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 23, 28, 32, 35, 40, 46, 56, 64, 70, 80, 92, 112, 115, 128, 140, 160, 161, 184, 224, 230, 280, 320, 322, 368, 448, 460, 560, 640, 644, 736, 805, 896, 920, 1120, 1288, 1472, 1610, 1840, 1997, 2240, 2576, 2944, 3220, 3680, 3994, 4480, 5152, 6440, 7360, 7988, 9985, 10304, 12880, 13979, 14720, 15976, 19970, 20608, 25760, 27958, 31952, 39940, 45931, 51520, 55916, 63904, 69895, 79880, 91862, 103040, 111832, 127808, 139790, 159760, 183724, 223664, 229655, 255616, 279580, 319520, 321517, 367448, 447328, 459310, 559160, 639040, 643034, 734896, 894656, 918620, 1118320, 1278080, 1286068, 1469792, 1607585, 1789312, 1837240, 2236640, 2572136, 2939584, 3215170, 3674480, 4473280, 5144272, 5879168, 6430340, 7348960, 8946560, 10288544, 12860680, 14697920, 20577088, 25721360, 29395840, 41154176, 51442720, 102885440, 205770880]

約数ペア:

[(1, 205770880), (2, 102885440), (4, 51442720), (5, 41154176), (7, 29395840), (8, 25721360), (10, 20577088), (14, 14697920), (16, 12860680), (20, 10288544), (23, 8946560), (28, 7348960), (32, 6430340), (35, 5879168), (40, 5144272), (46, 4473280), (56, 3674480), (64, 3215170), (70, 2939584), (80, 2572136), (92, 2236640), (112, 1837240), (115, 1789312), (128, 1607585), (140, 1469792), (160, 1286068), (161, 1278080), (184, 1118320), (224, 918620), (230, 894656), (280, 734896), (320, 643034), (322, 639040), (368, 559160), (448, 459310), (460, 447328), (560, 367448), (640, 321517), (644, 319520), (736, 279580), (805, 255616), (896, 229655), (920, 223664), (1120, 183724), (1288, 159760), (1472, 139790), (1610, 127808), (1840, 111832), (1997, 103040), (2240, 91862), (2576, 79880), (2944, 69895), (3220, 63904), (3680, 55916), (3994, 51520), (4480, 45931), (5152, 39940), (6440, 31952), (7360, 27958), (7988, 25760), (9985, 20608), (10304, 19970), (12880, 15976), (13979, 14720)]