207909040

素因数分解:

$2^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{491}}^1$

素因数の和:650

約数の個数: 80

約数和(自身を含む): 497825280

約数和(自身を除く): 289916240

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 67, 79, 80, 134, 158, 268, 316, 335, 395, 491, 536, 632, 670, 790, 982, 1072, 1264, 1340, 1580, 1964, 2455, 2680, 3160, 3928, 4910, 5293, 5360, 6320, 7856, 9820, 10586, 19640, 21172, 26465, 32897, 38789, 39280, 42344, 52930, 65794, 77578, 84688, 105860, 131588, 155156, 164485, 193945, 211720, 263176, 310312, 328970, 387890, 423440, 526352, 620624, 657940, 775780, 1315880, 1551560, 2598863, 2631760, 3103120, 5197726, 10395452, 12994315, 20790904, 25988630, 41581808, 51977260, 103954520, 207909040]

約数ペア:

[(1, 207909040), (2, 103954520), (4, 51977260), (5, 41581808), (8, 25988630), (10, 20790904), (16, 12994315), (20, 10395452), (40, 5197726), (67, 3103120), (79, 2631760), (80, 2598863), (134, 1551560), (158, 1315880), (268, 775780), (316, 657940), (335, 620624), (395, 526352), (491, 423440), (536, 387890), (632, 328970), (670, 310312), (790, 263176), (982, 211720), (1072, 193945), (1264, 164485), (1340, 155156), (1580, 131588), (1964, 105860), (2455, 84688), (2680, 77578), (3160, 65794), (3928, 52930), (4910, 42344), (5293, 39280), (5360, 38789), (6320, 32897), (7856, 26465), (9820, 21172), (10586, 19640)]