247768984

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{509}}^1\times {\mathrm{857}}^1$

素因数の和:1443

約数の個数: 32

約数和(自身を含む): 472586400

約数和(自身を除く): 224817416

約数列:

[1, 2, 4, 8, 71, 142, 284, 509, 568, 857, 1018, 1714, 2036, 3428, 4072, 6856, 36139, 60847, 72278, 121694, 144556, 243388, 289112, 436213, 486776, 872426, 1744852, 3489704, 30971123, 61942246, 123884492, 247768984]

約数ペア:

[(1, 247768984), (2, 123884492), (4, 61942246), (8, 30971123), (71, 3489704), (142, 1744852), (284, 872426), (509, 486776), (568, 436213), (857, 289112), (1018, 243388), (1714, 144556), (2036, 121694), (3428, 72278), (4072, 60847), (6856, 36139)]