20081575

素因数分解:

$5^2\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:727

約数の個数: 24

約数和(自身を含む): 26645120

約数和(自身を除く): 6563545

約数列:

[1, 5, 19, 25, 67, 95, 335, 475, 631, 1273, 1675, 3155, 6365, 11989, 15775, 31825, 42277, 59945, 211385, 299725, 803263, 1056925, 4016315, 20081575]

約数ペア:

[(1, 20081575), (5, 4016315), (19, 1056925), (25, 803263), (67, 299725), (95, 211385), (335, 59945), (475, 42277), (631, 31825), (1273, 15775), (1675, 11989), (3155, 6365)]