19252720

素因数分解:

$2^4\times 5^1\times {\mathrm{240659}}^1$

素因数の和:240672

約数の個数: 20

約数和(自身を含む): 44762760

約数和(自身を除く): 25510040

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 240659, 481318, 962636, 1203295, 1925272, 2406590, 3850544, 4813180, 9626360, 19252720]

約数ペア:

[(1, 19252720), (2, 9626360), (4, 4813180), (5, 3850544), (8, 2406590), (10, 1925272), (16, 1203295), (20, 962636), (40, 481318), (80, 240659)]