20266280

素因数分解:

$2^3\times 5^1\times {\mathrm{103}}^1\times {\mathrm{4919}}^1$

素因数の和:5033

約数の個数: 32

約数和(自身を含む): 46051200

約数和(自身を除く): 25784920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 103, 206, 412, 515, 824, 1030, 2060, 4120, 4919, 9838, 19676, 24595, 39352, 49190, 98380, 196760, 506657, 1013314, 2026628, 2533285, 4053256, 5066570, 10133140, 20266280]

約数ペア:

[(1, 20266280), (2, 10133140), (4, 5066570), (5, 4053256), (8, 2533285), (10, 2026628), (20, 1013314), (40, 506657), (103, 196760), (206, 98380), (412, 49190), (515, 39352), (824, 24595), (1030, 19676), (2060, 9838), (4120, 4919)]