81688210

素因数分解:

$2^1\times 5^1\times {\mathrm{941}}^1\times {\mathrm{8681}}^1$

素因数の和:9629

約数の個数: 16

約数和(自身を含む): 147211992

約数和(自身を除く): 65523782

約数列:

[1, 2, 5, 10, 941, 1882, 4705, 8681, 9410, 17362, 43405, 86810, 8168821, 16337642, 40844105, 81688210]

約数ペア:

[(1, 81688210), (2, 40844105), (5, 16337642), (10, 8168821), (941, 86810), (1882, 43405), (4705, 17362), (8681, 9410)]