18422320

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{491}}^1$

素因数の和:578

約数の個数: 80

約数和(自身を含む): 49782528

約数和(自身を除く): 31360208

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 35, 40, 56, 67, 70, 80, 112, 134, 140, 268, 280, 335, 469, 491, 536, 560, 670, 938, 982, 1072, 1340, 1876, 1964, 2345, 2455, 2680, 3437, 3752, 3928, 4690, 4910, 5360, 6874, 7504, 7856, 9380, 9820, 13748, 17185, 18760, 19640, 27496, 32897, 34370, 37520, 39280, 54992, 65794, 68740, 131588, 137480, 164485, 230279, 263176, 274960, 328970, 460558, 526352, 657940, 921116, 1151395, 1315880, 1842232, 2302790, 2631760, 3684464, 4605580, 9211160, 18422320]

約数ペア:

[(1, 18422320), (2, 9211160), (4, 4605580), (5, 3684464), (7, 2631760), (8, 2302790), (10, 1842232), (14, 1315880), (16, 1151395), (20, 921116), (28, 657940), (35, 526352), (40, 460558), (56, 328970), (67, 274960), (70, 263176), (80, 230279), (112, 164485), (134, 137480), (140, 131588), (268, 68740), (280, 65794), (335, 54992), (469, 39280), (491, 37520), (536, 34370), (560, 32897), (670, 27496), (938, 19640), (982, 18760), (1072, 17185), (1340, 13748), (1876, 9820), (1964, 9380), (2345, 7856), (2455, 7504), (2680, 6874), (3437, 5360), (3752, 4910), (3928, 4690)]