81208810

素因数分解:

$2^1\times 5^1\times {\mathrm{349}}^1\times {\mathrm{23269}}^1$

素因数の和:23625

約数の個数: 16

約数和(自身を含む): 146601000

約数和(自身を除く): 65392190

約数列:

[1, 2, 5, 10, 349, 698, 1745, 3490, 23269, 46538, 116345, 232690, 8120881, 16241762, 40604405, 81208810]

約数ペア:

[(1, 81208810), (2, 40604405), (5, 16241762), (10, 8120881), (349, 232690), (698, 116345), (1745, 46538), (3490, 23269)]