278319849

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{131}}^1\times {\mathrm{751}}^1$

素因数の和:949

約数の個数: 32

約数和(自身を含む): 400232448

約数和(自身を除く): 121912599

約数列:

[1, 3, 23, 41, 69, 123, 131, 393, 751, 943, 2253, 2829, 3013, 5371, 9039, 16113, 17273, 30791, 51819, 92373, 98381, 123533, 295143, 370599, 708193, 2124579, 2262763, 4033621, 6788289, 12100863, 92773283, 278319849]

約数ペア:

[(1, 278319849), (3, 92773283), (23, 12100863), (41, 6788289), (69, 4033621), (123, 2262763), (131, 2124579), (393, 708193), (751, 370599), (943, 295143), (2253, 123533), (2829, 98381), (3013, 92373), (5371, 51819), (9039, 30791), (16113, 17273)]