247211025

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{193891}}^1$

素因数の和:193921

約数の個数: 24

約数和(自身を含む): 432766944

約数和(自身を除く): 185555919

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 193891, 581673, 969455, 2908365, 3296147, 4847275, 9888441, 14541825, 16480735, 49442205, 82403675, 247211025]

約数ペア:

[(1, 247211025), (3, 82403675), (5, 49442205), (15, 16480735), (17, 14541825), (25, 9888441), (51, 4847275), (75, 3296147), (85, 2908365), (255, 969455), (425, 581673), (1275, 193891)]