19308880

素因数分解:

$2^4\times 5^1\times {\mathrm{241361}}^1$

素因数の和:241374

約数の個数: 20

約数和(自身を含む): 44893332

約数和(自身を除く): 25584452

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 241361, 482722, 965444, 1206805, 1930888, 2413610, 3861776, 4827220, 9654440, 19308880]

約数ペア:

[(1, 19308880), (2, 9654440), (4, 4827220), (5, 3861776), (8, 2413610), (10, 1930888), (16, 1206805), (20, 965444), (40, 482722), (80, 241361)]