15400120

素因数分解:

$2^3\times 5^1\times {\mathrm{439}}^1\times {\mathrm{877}}^1$

素因数の和:1327

約数の個数: 32

約数和(自身を含む): 34768800

約数和(自身を除く): 19368680

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 439, 877, 878, 1754, 1756, 2195, 3508, 3512, 4385, 4390, 7016, 8770, 8780, 17540, 17560, 35080, 385003, 770006, 1540012, 1925015, 3080024, 3850030, 7700060, 15400120]

約数ペア:

[(1, 15400120), (2, 7700060), (4, 3850030), (5, 3080024), (8, 1925015), (10, 1540012), (20, 770006), (40, 385003), (439, 35080), (877, 17560), (878, 17540), (1754, 8780), (1756, 8770), (2195, 7016), (3508, 4390), (3512, 4385)]