15840080

素因数分解:

$2^4\times 5^1\times {\mathrm{389}}^1\times {\mathrm{509}}^1$

素因数の和:911

約数の個数: 40

約数和(自身を含む): 36995400

約数和(自身を除く): 21155320

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 389, 509, 778, 1018, 1556, 1945, 2036, 2545, 3112, 3890, 4072, 5090, 6224, 7780, 8144, 10180, 15560, 20360, 31120, 40720, 198001, 396002, 792004, 990005, 1584008, 1980010, 3168016, 3960020, 7920040, 15840080]

約数ペア:

[(1, 15840080), (2, 7920040), (4, 3960020), (5, 3168016), (8, 1980010), (10, 1584008), (16, 990005), (20, 792004), (40, 396002), (80, 198001), (389, 40720), (509, 31120), (778, 20360), (1018, 15560), (1556, 10180), (1945, 8144), (2036, 7780), (2545, 6224), (3112, 5090), (3890, 4072)]