20201275

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{599}}^1$

素因数の和:699

約数の個数: 24

約数和(自身を含む): 26784000

約数和(自身を除く): 6582725

約数列:

[1, 5, 19, 25, 71, 95, 355, 475, 599, 1349, 1775, 2995, 6745, 11381, 14975, 33725, 42529, 56905, 212645, 284525, 808051, 1063225, 4040255, 20201275]

約数ペア:

[(1, 20201275), (5, 4040255), (19, 1063225), (25, 808051), (71, 284525), (95, 212645), (355, 56905), (475, 42529), (599, 33725), (1349, 14975), (1775, 11381), (2995, 6745)]