1439920

素因数分解:

$2^4\times 5^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:493

約数の個数: 40

約数和(自身を含む): 3437280

約数和(自身を除く): 1997360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 41, 80, 82, 164, 205, 328, 410, 439, 656, 820, 878, 1640, 1756, 2195, 3280, 3512, 4390, 7024, 8780, 17560, 17999, 35120, 35998, 71996, 89995, 143992, 179990, 287984, 359980, 719960, 1439920]

約数ペア:

[(1, 1439920), (2, 719960), (4, 359980), (5, 287984), (8, 179990), (10, 143992), (16, 89995), (20, 71996), (40, 35998), (41, 35120), (80, 17999), (82, 17560), (164, 8780), (205, 7024), (328, 4390), (410, 3512), (439, 3280), (656, 2195), (820, 1756), (878, 1640)]