1248996880

素因数分解:

$2^4\times 5^1\times {\mathrm{15612461}}^1$

素因数の和:15612474

約数の個数: 20

約数和(自身を含む): 2903917932

約数和(自身を除く): 1654921052

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 15612461, 31224922, 62449844, 78062305, 124899688, 156124610, 249799376, 312249220, 624498440, 1248996880]

約数ペア:

[(1, 1248996880), (2, 624498440), (4, 312249220), (5, 249799376), (8, 156124610), (10, 124899688), (16, 78062305), (20, 62449844), (40, 31224922), (80, 15612461)]