166563740

素因数分解:

$2^2\times 5^1\times 7^2\times {\mathrm{349}}^1\times {\mathrm{487}}^1$

素因数の和:859

約数の個数: 72

約数和(自身を含む): 408895200

約数和(自身を除く): 242331460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 349, 487, 490, 698, 974, 980, 1396, 1745, 1948, 2435, 2443, 3409, 3490, 4870, 4886, 6818, 6980, 9740, 9772, 12215, 13636, 17045, 17101, 23863, 24430, 34090, 34202, 47726, 48860, 68180, 68404, 85505, 95452, 119315, 169963, 171010, 238630, 339926, 342020, 477260, 679852, 849815, 1189741, 1699630, 2379482, 3399260, 4758964, 5948705, 8328187, 11897410, 16656374, 23794820, 33312748, 41640935, 83281870, 166563740]

約数ペア:

[(1, 166563740), (2, 83281870), (4, 41640935), (5, 33312748), (7, 23794820), (10, 16656374), (14, 11897410), (20, 8328187), (28, 5948705), (35, 4758964), (49, 3399260), (70, 2379482), (98, 1699630), (140, 1189741), (196, 849815), (245, 679852), (349, 477260), (487, 342020), (490, 339926), (698, 238630), (974, 171010), (980, 169963), (1396, 119315), (1745, 95452), (1948, 85505), (2435, 68404), (2443, 68180), (3409, 48860), (3490, 47726), (4870, 34202), (4886, 34090), (6818, 24430), (6980, 23863), (9740, 17101), (9772, 17045), (12215, 13636)]