12947840

素因数分解:

$2^7\times 5^1\times {\mathrm{20231}}^1$

素因数の和:20250

約数の個数: 32

約数和(自身を含む): 30954960

約数和(自身を除く): 18007120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 20231, 40462, 80924, 101155, 161848, 202310, 323696, 404620, 647392, 809240, 1294784, 1618480, 2589568, 3236960, 6473920, 12947840]

約数ペア:

[(1, 12947840), (2, 6473920), (4, 3236960), (5, 2589568), (8, 1618480), (10, 1294784), (16, 809240), (20, 647392), (32, 404620), (40, 323696), (64, 202310), (80, 161848), (128, 101155), (160, 80924), (320, 40462), (640, 20231)]