245860

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{647}}^1$

素因数の和:675

約数の個数: 24

約数和(自身を含む): 544320

約数和(自身を除く): 298460

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 647, 1294, 2588, 3235, 6470, 12293, 12940, 24586, 49172, 61465, 122930, 245860]

約数ペア:

[(1, 245860), (2, 122930), (4, 61465), (5, 49172), (10, 24586), (19, 12940), (20, 12293), (38, 6470), (76, 3235), (95, 2588), (190, 1294), (380, 647)]