9971440

素因数分解:

$2^4\times 5^1\times {\mathrm{124643}}^1$

素因数の和:124656

約数の個数: 20

約数和(自身を含む): 23183784

約数和(自身を除く): 13212344

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 124643, 249286, 498572, 623215, 997144, 1246430, 1994288, 2492860, 4985720, 9971440]

約数ペア:

[(1, 9971440), (2, 4985720), (4, 2492860), (5, 1994288), (8, 1246430), (10, 997144), (16, 623215), (20, 498572), (40, 249286), (80, 124643)]