12720370

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{97849}}^1$

素因数の和:97869

約数の個数: 16

約数和(自身を含む): 24658200

約数和(自身を除く): 11937830

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 97849, 195698, 489245, 978490, 1272037, 2544074, 6360185, 12720370]

約数ペア:

[(1, 12720370), (2, 6360185), (5, 2544074), (10, 1272037), (13, 978490), (26, 489245), (65, 195698), (130, 97849)]