71324320

素因数分解:

$2^5\times 5^1\times {\mathrm{223}}^1\times {\mathrm{1999}}^1$

素因数の和:2237

約数の個数: 48

約数和(自身を含む): 169344000

約数和(自身を除く): 98019680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 223, 446, 892, 1115, 1784, 1999, 2230, 3568, 3998, 4460, 7136, 7996, 8920, 9995, 15992, 17840, 19990, 31984, 35680, 39980, 63968, 79960, 159920, 319840, 445777, 891554, 1783108, 2228885, 3566216, 4457770, 7132432, 8915540, 14264864, 17831080, 35662160, 71324320]

約数ペア:

[(1, 71324320), (2, 35662160), (4, 17831080), (5, 14264864), (8, 8915540), (10, 7132432), (16, 4457770), (20, 3566216), (32, 2228885), (40, 1783108), (80, 891554), (160, 445777), (223, 319840), (446, 159920), (892, 79960), (1115, 63968), (1784, 39980), (1999, 35680), (2230, 31984), (3568, 19990), (3998, 17840), (4460, 15992), (7136, 9995), (7996, 8920)]