31455280

素因数分解:

$2^4\times 5^1\times {\mathrm{393191}}^1$

素因数の和:393204

約数の個数: 20

約数和(自身を含む): 73133712

約数和(自身を除く): 41678432

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 393191, 786382, 1572764, 1965955, 3145528, 3931910, 6291056, 7863820, 15727640, 31455280]

約数ペア:

[(1, 31455280), (2, 15727640), (4, 7863820), (5, 6291056), (8, 3931910), (10, 3145528), (16, 1965955), (20, 1572764), (40, 786382), (80, 393191)]