161991664

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{173}}^1\times {\mathrm{1361}}^1$

素因数の和:1585

約数の個数: 40

約数和(自身を含む): 323251632

約数和(自身を除く): 161259968

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 173, 344, 346, 688, 692, 1361, 1384, 2722, 2768, 5444, 7439, 10888, 14878, 21776, 29756, 58523, 59512, 117046, 119024, 234092, 235453, 468184, 470906, 936368, 941812, 1883624, 3767248, 10124479, 20248958, 40497916, 80995832, 161991664]

約数ペア:

[(1, 161991664), (2, 80995832), (4, 40497916), (8, 20248958), (16, 10124479), (43, 3767248), (86, 1883624), (172, 941812), (173, 936368), (344, 470906), (346, 468184), (688, 235453), (692, 234092), (1361, 119024), (1384, 117046), (2722, 59512), (2768, 58523), (5444, 29756), (7439, 21776), (10888, 14878)]