313002680

素因数分解:

$2^3\times 5^1\times {\mathrm{491}}^1\times {\mathrm{15937}}^1$

素因数の和:16439

約数の個数: 32

約数和(自身を含む): 705734640

約数和(自身を除く): 392731960

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 491, 982, 1964, 2455, 3928, 4910, 9820, 15937, 19640, 31874, 63748, 79685, 127496, 159370, 318740, 637480, 7825067, 15650134, 31300268, 39125335, 62600536, 78250670, 156501340, 313002680]

約数ペア:

[(1, 313002680), (2, 156501340), (4, 78250670), (5, 62600536), (8, 39125335), (10, 31300268), (20, 15650134), (40, 7825067), (491, 637480), (982, 318740), (1964, 159370), (2455, 127496), (3928, 79685), (4910, 63748), (9820, 31874), (15937, 19640)]