245530880

素因数分解:

$2^8\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{409}}^1$

素因数の和:504

約数の個数: 144

約数和(自身を含む): 683840640

約数和(自身を除く): 438309760

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 64, 67, 70, 80, 112, 128, 134, 140, 160, 224, 256, 268, 280, 320, 335, 409, 448, 469, 536, 560, 640, 670, 818, 896, 938, 1072, 1120, 1280, 1340, 1636, 1792, 1876, 2045, 2144, 2240, 2345, 2680, 2863, 3272, 3752, 4090, 4288, 4480, 4690, 5360, 5726, 6544, 7504, 8180, 8576, 8960, 9380, 10720, 11452, 13088, 14315, 15008, 16360, 17152, 18760, 21440, 22904, 26176, 27403, 28630, 30016, 32720, 37520, 42880, 45808, 52352, 54806, 57260, 60032, 65440, 75040, 85760, 91616, 104704, 109612, 114520, 120064, 130880, 137015, 150080, 183232, 191821, 219224, 229040, 261760, 274030, 300160, 366464, 383642, 438448, 458080, 523520, 548060, 600320, 732928, 767284, 876896, 916160, 959105, 1096120, 1534568, 1753792, 1832320, 1918210, 2192240, 3069136, 3507584, 3664640, 3836420, 4384480, 6138272, 7015168, 7672840, 8768960, 12276544, 15345680, 17537920, 24553088, 30691360, 35075840, 49106176, 61382720, 122765440, 245530880]

約数ペア:

[(1, 245530880), (2, 122765440), (4, 61382720), (5, 49106176), (7, 35075840), (8, 30691360), (10, 24553088), (14, 17537920), (16, 15345680), (20, 12276544), (28, 8768960), (32, 7672840), (35, 7015168), (40, 6138272), (56, 4384480), (64, 3836420), (67, 3664640), (70, 3507584), (80, 3069136), (112, 2192240), (128, 1918210), (134, 1832320), (140, 1753792), (160, 1534568), (224, 1096120), (256, 959105), (268, 916160), (280, 876896), (320, 767284), (335, 732928), (409, 600320), (448, 548060), (469, 523520), (536, 458080), (560, 438448), (640, 383642), (670, 366464), (818, 300160), (896, 274030), (938, 261760), (1072, 229040), (1120, 219224), (1280, 191821), (1340, 183232), (1636, 150080), (1792, 137015), (1876, 130880), (2045, 120064), (2144, 114520), (2240, 109612), (2345, 104704), (2680, 91616), (2863, 85760), (3272, 75040), (3752, 65440), (4090, 60032), (4288, 57260), (4480, 54806), (4690, 52352), (5360, 45808), (5726, 42880), (6544, 37520), (7504, 32720), (8180, 30016), (8576, 28630), (8960, 27403), (9380, 26176), (10720, 22904), (11452, 21440), (13088, 18760), (14315, 17152), (15008, 16360)]