194971520

素因数分解:

$2^7\times 5^1\times {\mathrm{304643}}^1$

素因数の和:304662

約数の個数: 32

約数和(自身を含む): 466105320

約数和(自身を除く): 271133800

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 304643, 609286, 1218572, 1523215, 2437144, 3046430, 4874288, 6092860, 9748576, 12185720, 19497152, 24371440, 38994304, 48742880, 97485760, 194971520]

約数ペア:

[(1, 194971520), (2, 97485760), (4, 48742880), (5, 38994304), (8, 24371440), (10, 19497152), (16, 12185720), (20, 9748576), (32, 6092860), (40, 4874288), (64, 3046430), (80, 2437144), (128, 1523215), (160, 1218572), (320, 609286), (640, 304643)]