199920640

素因数分解:

$2^{10}\times 5^1\times {\mathrm{39047}}^1$

素因数の和:39072

約数の個数: 44

約数和(自身を含む): 479587536

約数和(自身を除く): 279666896

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 512, 640, 1024, 1280, 2560, 5120, 39047, 78094, 156188, 195235, 312376, 390470, 624752, 780940, 1249504, 1561880, 2499008, 3123760, 4998016, 6247520, 9996032, 12495040, 19992064, 24990080, 39984128, 49980160, 99960320, 199920640]

約数ペア:

[(1, 199920640), (2, 99960320), (4, 49980160), (5, 39984128), (8, 24990080), (10, 19992064), (16, 12495040), (20, 9996032), (32, 6247520), (40, 4998016), (64, 3123760), (80, 2499008), (128, 1561880), (160, 1249504), (256, 780940), (320, 624752), (512, 390470), (640, 312376), (1024, 195235), (1280, 156188), (2560, 78094), (5120, 39047)]