2805140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{10789}}^1$

素因数の和:10811

約数の個数: 24

約数和(自身を含む): 6344520

約数和(自身を除く): 3539380

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 10789, 21578, 43156, 53945, 107890, 140257, 215780, 280514, 561028, 701285, 1402570, 2805140]

約数ペア:

[(1, 2805140), (2, 1402570), (4, 701285), (5, 561028), (10, 280514), (13, 215780), (20, 140257), (26, 107890), (52, 53945), (65, 43156), (130, 21578), (260, 10789)]