278328985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{233}}^1\times {\mathrm{587}}^1$

素因数の和:873

約数の個数: 32

約数和(自身を含む): 376451712

約数和(自身を除く): 98122727

約数列:

[1, 5, 11, 37, 55, 185, 233, 407, 587, 1165, 2035, 2563, 2935, 6457, 8621, 12815, 21719, 32285, 43105, 94831, 108595, 136771, 238909, 474155, 683855, 1194545, 1504481, 5060527, 7522405, 25302635, 55665797, 278328985]

約数ペア:

[(1, 278328985), (5, 55665797), (11, 25302635), (37, 7522405), (55, 5060527), (185, 1504481), (233, 1194545), (407, 683855), (587, 474155), (1165, 238909), (2035, 136771), (2563, 108595), (2935, 94831), (6457, 43105), (8621, 32285), (12815, 21719)]