1338160

素因数分解:

$2^4\times 5^1\times {\mathrm{43}}^1\times {\mathrm{389}}^1$

素因数の和:445

約数の個数: 40

約数和(自身を含む): 3191760

約数和(自身を除く): 1853600

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 43, 80, 86, 172, 215, 344, 389, 430, 688, 778, 860, 1556, 1720, 1945, 3112, 3440, 3890, 6224, 7780, 15560, 16727, 31120, 33454, 66908, 83635, 133816, 167270, 267632, 334540, 669080, 1338160]

約数ペア:

[(1, 1338160), (2, 669080), (4, 334540), (5, 267632), (8, 167270), (10, 133816), (16, 83635), (20, 66908), (40, 33454), (43, 31120), (80, 16727), (86, 15560), (172, 7780), (215, 6224), (344, 3890), (389, 3440), (430, 3112), (688, 1945), (778, 1720), (860, 1556)]