278770321

素因数分解:

${\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{359}}^1\times {\mathrm{677}}^1$

素因数の和:1104

約数の個数: 16

約数和(自身を含む): 296801280

約数和(自身を除く): 18030959

約数列:

[1, 31, 37, 359, 677, 1147, 11129, 13283, 20987, 25049, 243043, 411773, 776519, 7534333, 8992591, 278770321]

約数ペア:

[(1, 278770321), (31, 8992591), (37, 7534333), (359, 776519), (677, 411773), (1147, 243043), (11129, 25049), (13283, 20987)]