19678175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{163}}^1\times {\mathrm{439}}^1$

素因数の和:623

約数の個数: 24

約数和(自身を含む): 26843520

約数和(自身を除く): 7165345

約数列:

[1, 5, 11, 25, 55, 163, 275, 439, 815, 1793, 2195, 4075, 4829, 8965, 10975, 24145, 44825, 71557, 120725, 357785, 787127, 1788925, 3935635, 19678175]

約数ペア:

[(1, 19678175), (5, 3935635), (11, 1788925), (25, 787127), (55, 357785), (163, 120725), (275, 71557), (439, 44825), (815, 24145), (1793, 10975), (2195, 8965), (4075, 4829)]