642918884

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{115883}}^1$

素因数の和:115979

約数の個数: 24

約数和(自身を含む): 1200558240

約数和(自身を除く): 557639356

約数列:

[1, 2, 4, 19, 38, 73, 76, 146, 292, 1387, 2774, 5548, 115883, 231766, 463532, 2201777, 4403554, 8459459, 8807108, 16918918, 33837836, 160729721, 321459442, 642918884]

約数ペア:

[(1, 642918884), (2, 321459442), (4, 160729721), (19, 33837836), (38, 16918918), (73, 8807108), (76, 8459459), (146, 4403554), (292, 2201777), (1387, 463532), (2774, 231766), (5548, 115883)]