20151020

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^2\times {\mathrm{2791}}^1$

素因数の和:2838

約数の個数: 36

約数和(自身を含む): 44677584

約数和(自身を除く): 24526564

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 361, 380, 722, 1444, 1805, 2791, 3610, 5582, 7220, 11164, 13955, 27910, 53029, 55820, 106058, 212116, 265145, 530290, 1007551, 1060580, 2015102, 4030204, 5037755, 10075510, 20151020]

約数ペア:

[(1, 20151020), (2, 10075510), (4, 5037755), (5, 4030204), (10, 2015102), (19, 1060580), (20, 1007551), (38, 530290), (76, 265145), (95, 212116), (190, 106058), (361, 55820), (380, 53029), (722, 27910), (1444, 13955), (1805, 11164), (2791, 7220), (3610, 5582)]