278776797

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{12973}}^1$

素因数の和:13037

約数の個数: 32

約数和(自身を含む): 435926400

約数和(自身を除く): 157149603

約数列:

[1, 3, 13, 19, 29, 39, 57, 87, 247, 377, 551, 741, 1131, 1653, 7163, 12973, 21489, 38919, 168649, 246487, 376217, 505947, 739461, 1128651, 3204331, 4890821, 7148123, 9612993, 14672463, 21444369, 92925599, 278776797]

約数ペア:

[(1, 278776797), (3, 92925599), (13, 21444369), (19, 14672463), (29, 9612993), (39, 7148123), (57, 4890821), (87, 3204331), (247, 1128651), (377, 739461), (551, 505947), (741, 376217), (1131, 246487), (1653, 168649), (7163, 38919), (12973, 21489)]