20886780

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{4903}}^1$

素因数の和:4986

約数の個数: 48

約数和(自身を含む): 59318784

約数和(自身を除く): 38432004

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 4903, 9806, 14709, 19612, 24515, 29418, 49030, 58836, 73545, 98060, 147090, 294180, 348113, 696226, 1044339, 1392452, 1740565, 2088678, 3481130, 4177356, 5221695, 6962260, 10443390, 20886780]

約数ペア:

[(1, 20886780), (2, 10443390), (3, 6962260), (4, 5221695), (5, 4177356), (6, 3481130), (10, 2088678), (12, 1740565), (15, 1392452), (20, 1044339), (30, 696226), (60, 348113), (71, 294180), (142, 147090), (213, 98060), (284, 73545), (355, 58836), (426, 49030), (710, 29418), (852, 24515), (1065, 19612), (1420, 14709), (2130, 9806), (4260, 4903)]