12721356770

素因数分解:

$2^1\times 5^1\times {\mathrm{20903}}^1\times {\mathrm{60859}}^1$

素因数の和:81769

約数の個数: 16

約数和(自身を含む): 22899913920

約数和(自身を除く): 10178557150

約数列:

[1, 2, 5, 10, 20903, 41806, 60859, 104515, 121718, 209030, 304295, 608590, 1272135677, 2544271354, 6360678385, 12721356770]

約数ペア:

[(1, 12721356770), (2, 6360678385), (5, 2544271354), (10, 1272135677), (20903, 608590), (41806, 304295), (60859, 209030), (104515, 121718)]