19271240

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{20947}}^1$

素因数の和:20981

約数の個数: 32

約数和(自身を含む): 45247680

約数和(自身を除く): 25976440

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 20947, 41894, 83788, 104735, 167576, 209470, 418940, 481781, 837880, 963562, 1927124, 2408905, 3854248, 4817810, 9635620, 19271240]

約数ペア:

[(1, 19271240), (2, 9635620), (4, 4817810), (5, 3854248), (8, 2408905), (10, 1927124), (20, 963562), (23, 837880), (40, 481781), (46, 418940), (92, 209470), (115, 167576), (184, 104735), (230, 83788), (460, 41894), (920, 20947)]