249869960

素因数分解:

$2^3\times 5^1\times {\mathrm{101}}^1\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:726

約数の個数: 64

約数和(自身を含む): 573419520

約数和(自身を除く): 323549560

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 101, 127, 202, 254, 404, 487, 505, 508, 635, 808, 974, 1010, 1016, 1270, 1948, 2020, 2435, 2540, 3896, 4040, 4870, 5080, 9740, 12827, 19480, 25654, 49187, 51308, 61849, 64135, 98374, 102616, 123698, 128270, 196748, 245935, 247396, 256540, 309245, 393496, 491870, 494792, 513080, 618490, 983740, 1236980, 1967480, 2473960, 6246749, 12493498, 24986996, 31233745, 49973992, 62467490, 124934980, 249869960]

約数ペア:

[(1, 249869960), (2, 124934980), (4, 62467490), (5, 49973992), (8, 31233745), (10, 24986996), (20, 12493498), (40, 6246749), (101, 2473960), (127, 1967480), (202, 1236980), (254, 983740), (404, 618490), (487, 513080), (505, 494792), (508, 491870), (635, 393496), (808, 309245), (974, 256540), (1010, 247396), (1016, 245935), (1270, 196748), (1948, 128270), (2020, 123698), (2435, 102616), (2540, 98374), (3896, 64135), (4040, 61849), (4870, 51308), (5080, 49187), (9740, 25654), (12827, 19480)]