245490260

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{646027}}^1$

素因数の和:646055

約数の個数: 24

約数和(自身を含む): 542663520

約数和(自身を除く): 297173260

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 646027, 1292054, 2584108, 3230135, 6460270, 12274513, 12920540, 24549026, 49098052, 61372565, 122745130, 245490260]

約数ペア:

[(1, 245490260), (2, 122745130), (4, 61372565), (5, 49098052), (10, 24549026), (19, 12920540), (20, 12274513), (38, 6460270), (76, 3230135), (95, 2584108), (190, 1292054), (380, 646027)]