278270785

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{79}}^1\times {\mathrm{1153}}^1$

素因数の和:1297

約数の個数: 32

約数和(自身を含む): 372234240

約数和(自身を除く): 93963455

約数列:

[1, 5, 13, 47, 65, 79, 235, 395, 611, 1027, 1153, 3055, 3713, 5135, 5765, 14989, 18565, 48269, 54191, 74945, 91087, 241345, 270955, 455435, 704483, 1184131, 3522415, 4281089, 5920655, 21405445, 55654157, 278270785]

約数ペア:

[(1, 278270785), (5, 55654157), (13, 21405445), (47, 5920655), (65, 4281089), (79, 3522415), (235, 1184131), (395, 704483), (611, 455435), (1027, 270955), (1153, 241345), (3055, 91087), (3713, 74945), (5135, 54191), (5765, 48269), (14989, 18565)]