247381520

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{162751}}^1$

素因数の和:162783

約数の個数: 40

約数和(自身を含む): 605437440

約数和(自身を除く): 358055920

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 304, 380, 760, 1520, 162751, 325502, 651004, 813755, 1302008, 1627510, 2604016, 3092269, 3255020, 6184538, 6510040, 12369076, 13020080, 15461345, 24738152, 30922690, 49476304, 61845380, 123690760, 247381520]

約数ペア:

[(1, 247381520), (2, 123690760), (4, 61845380), (5, 49476304), (8, 30922690), (10, 24738152), (16, 15461345), (19, 13020080), (20, 12369076), (38, 6510040), (40, 6184538), (76, 3255020), (80, 3092269), (95, 2604016), (152, 1627510), (190, 1302008), (304, 813755), (380, 651004), (760, 325502), (1520, 162751)]