19470040

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{757}}^1$

素因数の和:1411

約数の個数: 32

約数和(自身を含む): 43933680

約数和(自身を除く): 24463640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 757, 1286, 1514, 2572, 3028, 3215, 3785, 5144, 6056, 6430, 7570, 12860, 15140, 25720, 30280, 486751, 973502, 1947004, 2433755, 3894008, 4867510, 9735020, 19470040]

約数ペア:

[(1, 19470040), (2, 9735020), (4, 4867510), (5, 3894008), (8, 2433755), (10, 1947004), (20, 973502), (40, 486751), (643, 30280), (757, 25720), (1286, 15140), (1514, 12860), (2572, 7570), (3028, 6430), (3215, 6056), (3785, 5144)]