197164880

素因数分解:

$2^4\times 5^1\times {\mathrm{11}}^1\times {\mathrm{449}}^1\times {\mathrm{499}}^1$

素因数の和:972

約数の個数: 80

約数和(自身を含む): 502200000

約数和(自身を除く): 305035120

約数列:

[1, 2, 4, 5, 8, 10, 11, 16, 20, 22, 40, 44, 55, 80, 88, 110, 176, 220, 440, 449, 499, 880, 898, 998, 1796, 1996, 2245, 2495, 3592, 3992, 4490, 4939, 4990, 5489, 7184, 7984, 8980, 9878, 9980, 10978, 17960, 19756, 19960, 21956, 24695, 27445, 35920, 39512, 39920, 43912, 49390, 54890, 79024, 87824, 98780, 109780, 197560, 219560, 224051, 395120, 439120, 448102, 896204, 1120255, 1792408, 2240510, 2464561, 3584816, 4481020, 4929122, 8962040, 9858244, 12322805, 17924080, 19716488, 24645610, 39432976, 49291220, 98582440, 197164880]

約数ペア:

[(1, 197164880), (2, 98582440), (4, 49291220), (5, 39432976), (8, 24645610), (10, 19716488), (11, 17924080), (16, 12322805), (20, 9858244), (22, 8962040), (40, 4929122), (44, 4481020), (55, 3584816), (80, 2464561), (88, 2240510), (110, 1792408), (176, 1120255), (220, 896204), (440, 448102), (449, 439120), (499, 395120), (880, 224051), (898, 219560), (998, 197560), (1796, 109780), (1996, 98780), (2245, 87824), (2495, 79024), (3592, 54890), (3992, 49390), (4490, 43912), (4939, 39920), (4990, 39512), (5489, 35920), (7184, 27445), (7984, 24695), (8980, 21956), (9878, 19960), (9980, 19756), (10978, 17960)]