81670115

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{3761}}^1$

素因数の和:3910

約数の個数: 16

約数和(自身を含む): 101303136

約数和(自身を除く): 19633021

約数列:

[1, 5, 43, 101, 215, 505, 3761, 4343, 18805, 21715, 161723, 379861, 808615, 1899305, 16334023, 81670115]

約数ペア:

[(1, 81670115), (5, 16334023), (43, 1899305), (101, 808615), (215, 379861), (505, 161723), (3761, 21715), (4343, 18805)]