12907120

素因数分解:

$2^4\times 5^1\times {\mathrm{161339}}^1$

素因数の和:161352

約数の個数: 20

約数和(自身を含む): 30009240

約数和(自身を除く): 17102120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 161339, 322678, 645356, 806695, 1290712, 1613390, 2581424, 3226780, 6453560, 12907120]

約数ペア:

[(1, 12907120), (2, 6453560), (4, 3226780), (5, 2581424), (8, 1613390), (10, 1290712), (16, 806695), (20, 645356), (40, 322678), (80, 161339)]