81202970

素因数分解:

$2^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{61987}}^1$

素因数の和:62125

約数の個数: 16

約数和(自身を含む): 147283488

約数和(自身を除く): 66080518

約数列:

[1, 2, 5, 10, 131, 262, 655, 1310, 61987, 123974, 309935, 619870, 8120297, 16240594, 40601485, 81202970]

約数ペア:

[(1, 81202970), (2, 40601485), (5, 16240594), (10, 8120297), (131, 619870), (262, 309935), (655, 123974), (1310, 61987)]