20173909264

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{61}}^1\times {\mathrm{439787}}^1$

素因数の和:439903

約数の個数: 40

約数和(自身を含む): 40573081728

約数和(自身を除く): 20399172464

約数列:

[1, 2, 4, 8, 16, 47, 61, 94, 122, 188, 244, 376, 488, 752, 976, 2867, 5734, 11468, 22936, 45872, 439787, 879574, 1759148, 3518296, 7036592, 20669989, 26827007, 41339978, 53654014, 82679956, 107308028, 165359912, 214616056, 330719824, 429232112, 1260869329, 2521738658, 5043477316, 10086954632, 20173909264]

約数ペア:

[(1, 20173909264), (2, 10086954632), (4, 5043477316), (8, 2521738658), (16, 1260869329), (47, 429232112), (61, 330719824), (94, 214616056), (122, 165359912), (188, 107308028), (244, 82679956), (376, 53654014), (488, 41339978), (752, 26827007), (976, 20669989), (2867, 7036592), (5734, 3518296), (11468, 1759148), (22936, 879574), (45872, 439787)]