256494

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{197}}^1$

素因数の和:240

約数の個数: 32

約数和(自身を含む): 608256

約数和(自身を除く): 351762

約数列:

[1, 2, 3, 6, 7, 14, 21, 31, 42, 62, 93, 186, 197, 217, 394, 434, 591, 651, 1182, 1302, 1379, 2758, 4137, 6107, 8274, 12214, 18321, 36642, 42749, 85498, 128247, 256494]

約数ペア:

[(1, 256494), (2, 128247), (3, 85498), (6, 42749), (7, 36642), (14, 18321), (21, 12214), (31, 8274), (42, 6107), (62, 4137), (93, 2758), (186, 1379), (197, 1302), (217, 1182), (394, 651), (434, 591)]