118877680

素因数分解:

$2^4\times 5^1\times {\mathrm{19}}^1\times {\mathrm{197}}^1\times {\mathrm{397}}^1$

素因数の和:626

約数の個数: 80

約数和(自身を含む): 293150880

約数和(自身を除く): 174273200

約数列:

[1, 2, 4, 5, 8, 10, 16, 19, 20, 38, 40, 76, 80, 95, 152, 190, 197, 304, 380, 394, 397, 760, 788, 794, 985, 1520, 1576, 1588, 1970, 1985, 3152, 3176, 3743, 3940, 3970, 6352, 7486, 7543, 7880, 7940, 14972, 15086, 15760, 15880, 18715, 29944, 30172, 31760, 37430, 37715, 59888, 60344, 74860, 75430, 78209, 120688, 149720, 150860, 156418, 299440, 301720, 312836, 391045, 603440, 625672, 782090, 1251344, 1485971, 1564180, 2971942, 3128360, 5943884, 6256720, 7429855, 11887768, 14859710, 23775536, 29719420, 59438840, 118877680]

約数ペア:

[(1, 118877680), (2, 59438840), (4, 29719420), (5, 23775536), (8, 14859710), (10, 11887768), (16, 7429855), (19, 6256720), (20, 5943884), (38, 3128360), (40, 2971942), (76, 1564180), (80, 1485971), (95, 1251344), (152, 782090), (190, 625672), (197, 603440), (304, 391045), (380, 312836), (394, 301720), (397, 299440), (760, 156418), (788, 150860), (794, 149720), (985, 120688), (1520, 78209), (1576, 75430), (1588, 74860), (1970, 60344), (1985, 59888), (3152, 37715), (3176, 37430), (3743, 31760), (3940, 30172), (3970, 29944), (6352, 18715), (7486, 15880), (7543, 15760), (7880, 15086), (7940, 14972)]