81280030

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{625231}}^1$

素因数の和:625251

約数の個数: 16

約数和(自身を含む): 157558464

約数和(自身を除く): 76278434

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 625231, 1250462, 3126155, 6252310, 8128003, 16256006, 40640015, 81280030]

約数ペア:

[(1, 81280030), (2, 40640015), (5, 16256006), (10, 8128003), (13, 6252310), (26, 3126155), (65, 1250462), (130, 625231)]