20130280

素因数分解:

$2^3\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2909}}^1$

素因数の和:3093

約数の個数: 32

約数和(自身を含む): 45570600

約数和(自身を除く): 25440320

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 173, 346, 692, 865, 1384, 1730, 2909, 3460, 5818, 6920, 11636, 14545, 23272, 29090, 58180, 116360, 503257, 1006514, 2013028, 2516285, 4026056, 5032570, 10065140, 20130280]

約数ペア:

[(1, 20130280), (2, 10065140), (4, 5032570), (5, 4026056), (8, 2516285), (10, 2013028), (20, 1006514), (40, 503257), (173, 116360), (346, 58180), (692, 29090), (865, 23272), (1384, 14545), (1730, 11636), (2909, 6920), (3460, 5818)]