407950

素因数分解:

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

素因数の和:252

約数の個数: 24

約数和(自身を含む): 781200

約数和(自身を除く): 373250

約数列:

[1, 2, 5, 10, 25, 41, 50, 82, 199, 205, 398, 410, 995, 1025, 1990, 2050, 4975, 8159, 9950, 16318, 40795, 81590, 203975, 407950]

約数ペア:

[(1, 407950), (2, 203975), (5, 81590), (10, 40795), (25, 16318), (41, 9950), (50, 8159), (82, 4975), (199, 2050), (205, 1990), (398, 1025), (410, 995)]