87426820

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{10847}}^1$

素因数の和:10900

約数の個数: 48

約数和(自身を含む): 204115968

約数和(自身を除く): 116689148

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 31, 52, 62, 65, 124, 130, 155, 260, 310, 403, 620, 806, 1612, 2015, 4030, 8060, 10847, 21694, 43388, 54235, 108470, 141011, 216940, 282022, 336257, 564044, 672514, 705055, 1345028, 1410110, 1681285, 2820220, 3362570, 4371341, 6725140, 8742682, 17485364, 21856705, 43713410, 87426820]

約数ペア:

[(1, 87426820), (2, 43713410), (4, 21856705), (5, 17485364), (10, 8742682), (13, 6725140), (20, 4371341), (26, 3362570), (31, 2820220), (52, 1681285), (62, 1410110), (65, 1345028), (124, 705055), (130, 672514), (155, 564044), (260, 336257), (310, 282022), (403, 216940), (620, 141011), (806, 108470), (1612, 54235), (2015, 43388), (4030, 21694), (8060, 10847)]