665285

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{149}}^1$

素因数の和:220

約数の個数: 16

約数和(自身を含む): 864000

約数和(自身を除く): 198715

約数列:

[1, 5, 19, 47, 95, 149, 235, 745, 893, 2831, 4465, 7003, 14155, 35015, 133057, 665285]

約数ペア:

[(1, 665285), (5, 133057), (19, 35015), (47, 14155), (95, 7003), (149, 4465), (235, 2831), (745, 893)]