1998955

素因数分解:

$5^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{199}}^1$

素因数の和:259

約数の個数: 24

約数和(自身を含む): 2872800

約数和(自身を除く): 873845

約数列:

[1, 5, 7, 35, 41, 49, 199, 205, 245, 287, 995, 1393, 1435, 2009, 6965, 8159, 9751, 10045, 40795, 48755, 57113, 285565, 399791, 1998955]

約数ペア:

[(1, 1998955), (5, 399791), (7, 285565), (35, 57113), (41, 48755), (49, 40795), (199, 10045), (205, 9751), (245, 8159), (287, 6965), (995, 2009), (1393, 1435)]