87128015

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{70549}}^1$

素因数の和:70586

約数の個数: 16

約数和(自身を含む): 118524000

約数和(自身を除く): 31395985

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 70549, 352745, 917137, 1340431, 4585685, 6702155, 17425603, 87128015]

約数ペア:

[(1, 87128015), (5, 17425603), (13, 6702155), (19, 4585685), (65, 1340431), (95, 917137), (247, 352745), (1235, 70549)]