11867920

素因数分解:

$2^4\times 5^1\times {\mathrm{109}}^1\times {\mathrm{1361}}^1$

素因数の和:1483

約数の個数: 40

約数和(自身を含む): 27866520

約数和(自身を除く): 15998600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 109, 218, 436, 545, 872, 1090, 1361, 1744, 2180, 2722, 4360, 5444, 6805, 8720, 10888, 13610, 21776, 27220, 54440, 108880, 148349, 296698, 593396, 741745, 1186792, 1483490, 2373584, 2966980, 5933960, 11867920]

約数ペア:

[(1, 11867920), (2, 5933960), (4, 2966980), (5, 2373584), (8, 1483490), (10, 1186792), (16, 741745), (20, 593396), (40, 296698), (80, 148349), (109, 108880), (218, 54440), (436, 27220), (545, 21776), (872, 13610), (1090, 10888), (1361, 8720), (1744, 6805), (2180, 5444), (2722, 4360)]