19523440

素因数分解:

$2^4\times 5^1\times {\mathrm{244043}}^1$

素因数の和:244056

約数の個数: 20

約数和(自身を含む): 45392184

約数和(自身を除く): 25868744

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 244043, 488086, 976172, 1220215, 1952344, 2440430, 3904688, 4880860, 9761720, 19523440]

約数ペア:

[(1, 19523440), (2, 9761720), (4, 4880860), (5, 3904688), (8, 2440430), (10, 1952344), (16, 1220215), (20, 976172), (40, 488086), (80, 244043)]