247653705

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{74707}}^1$

素因数の和:74745

約数の個数: 32

約数和(自身を含む): 451833984

約数和(自身を除く): 204180279

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 74707, 224121, 373535, 971191, 1120605, 1270019, 2913573, 3810057, 4855955, 6350095, 14567865, 16510247, 19050285, 49530741, 82551235, 247653705]

約数ペア:

[(1, 247653705), (3, 82551235), (5, 49530741), (13, 19050285), (15, 16510247), (17, 14567865), (39, 6350095), (51, 4855955), (65, 3810057), (85, 2913573), (195, 1270019), (221, 1120605), (255, 971191), (663, 373535), (1105, 224121), (3315, 74707)]