19219925

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{941}}^1$

素因数の和:1013

約数の個数: 24

約数和(自身を含む): 25697760

約数和(自身を除く): 6477835

約数列:

[1, 5, 19, 25, 43, 95, 215, 475, 817, 941, 1075, 4085, 4705, 17879, 20425, 23525, 40463, 89395, 202315, 446975, 768797, 1011575, 3843985, 19219925]

約数ペア:

[(1, 19219925), (5, 3843985), (19, 1011575), (25, 768797), (43, 446975), (95, 202315), (215, 89395), (475, 40463), (817, 23525), (941, 20425), (1075, 17879), (4085, 4705)]