197916800

素因数分解:

$2^7\times 5^2\times {\mathrm{127}}^1\times {\mathrm{487}}^1$

素因数の和:638

約数の個数: 96

約数和(自身を含む): 493777920

約数和(自身を除く): 295861120

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 32, 40, 50, 64, 80, 100, 127, 128, 160, 200, 254, 320, 400, 487, 508, 635, 640, 800, 974, 1016, 1270, 1600, 1948, 2032, 2435, 2540, 3175, 3200, 3896, 4064, 4870, 5080, 6350, 7792, 8128, 9740, 10160, 12175, 12700, 15584, 16256, 19480, 20320, 24350, 25400, 31168, 38960, 40640, 48700, 50800, 61849, 62336, 77920, 81280, 97400, 101600, 123698, 155840, 194800, 203200, 247396, 309245, 311680, 389600, 406400, 494792, 618490, 779200, 989584, 1236980, 1546225, 1558400, 1979168, 2473960, 3092450, 3958336, 4947920, 6184900, 7916672, 9895840, 12369800, 19791680, 24739600, 39583360, 49479200, 98958400, 197916800]

約数ペア:

[(1, 197916800), (2, 98958400), (4, 49479200), (5, 39583360), (8, 24739600), (10, 19791680), (16, 12369800), (20, 9895840), (25, 7916672), (32, 6184900), (40, 4947920), (50, 3958336), (64, 3092450), (80, 2473960), (100, 1979168), (127, 1558400), (128, 1546225), (160, 1236980), (200, 989584), (254, 779200), (320, 618490), (400, 494792), (487, 406400), (508, 389600), (635, 311680), (640, 309245), (800, 247396), (974, 203200), (1016, 194800), (1270, 155840), (1600, 123698), (1948, 101600), (2032, 97400), (2435, 81280), (2540, 77920), (3175, 62336), (3200, 61849), (3896, 50800), (4064, 48700), (4870, 40640), (5080, 38960), (6350, 31168), (7792, 25400), (8128, 24350), (9740, 20320), (10160, 19480), (12175, 16256), (12700, 15584)]