681245

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:196

約数の個数: 16

約数和(自身を含む): 881280

約数和(自身を除く): 200035

約数列:

[1, 5, 19, 71, 95, 101, 355, 505, 1349, 1919, 6745, 7171, 9595, 35855, 136249, 681245]

約数ペア:

[(1, 681245), (5, 136249), (19, 35855), (71, 9595), (95, 7171), (101, 6745), (355, 1919), (505, 1349)]