171297380

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{409}}^1\times {\mathrm{487}}^1$

素因数の和:948

約数の個数: 48

約数和(自身を含む): 369747840

約数和(自身を除く): 198450460

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 409, 430, 487, 818, 860, 974, 1636, 1948, 2045, 2435, 4090, 4870, 8180, 9740, 17587, 20941, 35174, 41882, 70348, 83764, 87935, 104705, 175870, 199183, 209410, 351740, 398366, 418820, 796732, 995915, 1991830, 3983660, 8564869, 17129738, 34259476, 42824345, 85648690, 171297380]

約数ペア:

[(1, 171297380), (2, 85648690), (4, 42824345), (5, 34259476), (10, 17129738), (20, 8564869), (43, 3983660), (86, 1991830), (172, 995915), (215, 796732), (409, 418820), (430, 398366), (487, 351740), (818, 209410), (860, 199183), (974, 175870), (1636, 104705), (1948, 87935), (2045, 83764), (2435, 70348), (4090, 41882), (4870, 35174), (8180, 20941), (9740, 17587)]