2648820

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:480

約数の個数: 48

約数和(自身を含む): 7495488

約数和(自身を除く): 4846668

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 337, 393, 524, 655, 674, 786, 1011, 1310, 1348, 1572, 1685, 1965, 2022, 2620, 3370, 3930, 4044, 5055, 6740, 7860, 10110, 20220, 44147, 88294, 132441, 176588, 220735, 264882, 441470, 529764, 662205, 882940, 1324410, 2648820]

約数ペア:

[(1, 2648820), (2, 1324410), (3, 882940), (4, 662205), (5, 529764), (6, 441470), (10, 264882), (12, 220735), (15, 176588), (20, 132441), (30, 88294), (60, 44147), (131, 20220), (262, 10110), (337, 7860), (393, 6740), (524, 5055), (655, 4044), (674, 3930), (786, 3370), (1011, 2620), (1310, 2022), (1348, 1965), (1572, 1685)]