86981705

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{4201}}^1$

素因数の和:4348

約数の個数: 16

約数和(自身を含む): 108008208

約数和(自身を除く): 21026503

約数列:

[1, 5, 41, 101, 205, 505, 4141, 4201, 20705, 21005, 172241, 424301, 861205, 2121505, 17396341, 86981705]

約数ペア:

[(1, 86981705), (5, 17396341), (41, 2121505), (101, 861205), (205, 424301), (505, 172241), (4141, 21005), (4201, 20705)]