201731140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{775889}}^1$

素因数の和:775911

約数の個数: 24

約数和(自身を含む): 456223320

約数和(自身を除く): 254492180

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 775889, 1551778, 3103556, 3879445, 7758890, 10086557, 15517780, 20173114, 40346228, 50432785, 100865570, 201731140]

約数ペア:

[(1, 201731140), (2, 100865570), (4, 50432785), (5, 40346228), (10, 20173114), (13, 15517780), (20, 10086557), (26, 7758890), (52, 3879445), (65, 3103556), (130, 1551778), (260, 775889)]