18140920

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{967}}^1$

素因数の和:1052

約数の個数: 64

約数和(自身を含む): 47393280

約数和(自身を除く): 29252360

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 67, 70, 134, 140, 268, 280, 335, 469, 536, 670, 938, 967, 1340, 1876, 1934, 2345, 2680, 3752, 3868, 4690, 4835, 6769, 7736, 9380, 9670, 13538, 18760, 19340, 27076, 33845, 38680, 54152, 64789, 67690, 129578, 135380, 259156, 270760, 323945, 453523, 518312, 647890, 907046, 1295780, 1814092, 2267615, 2591560, 3628184, 4535230, 9070460, 18140920]

約数ペア:

[(1, 18140920), (2, 9070460), (4, 4535230), (5, 3628184), (7, 2591560), (8, 2267615), (10, 1814092), (14, 1295780), (20, 907046), (28, 647890), (35, 518312), (40, 453523), (56, 323945), (67, 270760), (70, 259156), (134, 135380), (140, 129578), (268, 67690), (280, 64789), (335, 54152), (469, 38680), (536, 33845), (670, 27076), (938, 19340), (967, 18760), (1340, 13538), (1876, 9670), (1934, 9380), (2345, 7736), (2680, 6769), (3752, 4835), (3868, 4690)]