55812080

素因数分解:

$2^4\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1999}}^1$

素因数の和:2361

約数の個数: 40

約数和(自身を含む): 130200000

約数和(自身を除く): 74387920

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 349, 698, 1396, 1745, 1999, 2792, 3490, 3998, 5584, 6980, 7996, 9995, 13960, 15992, 19990, 27920, 31984, 39980, 79960, 159920, 697651, 1395302, 2790604, 3488255, 5581208, 6976510, 11162416, 13953020, 27906040, 55812080]

約数ペア:

[(1, 55812080), (2, 27906040), (4, 13953020), (5, 11162416), (8, 6976510), (10, 5581208), (16, 3488255), (20, 2790604), (40, 1395302), (80, 697651), (349, 159920), (698, 79960), (1396, 39980), (1745, 31984), (1999, 27920), (2792, 19990), (3490, 15992), (3998, 13960), (5584, 9995), (6980, 7996)]