20874180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{173}}^1\times {\mathrm{2011}}^1$

素因数の和:2196

約数の個数: 48

約数和(自身を含む): 58814784

約数和(自身を除く): 37940604

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 173, 346, 519, 692, 865, 1038, 1730, 2011, 2076, 2595, 3460, 4022, 5190, 6033, 8044, 10055, 10380, 12066, 20110, 24132, 30165, 40220, 60330, 120660, 347903, 695806, 1043709, 1391612, 1739515, 2087418, 3479030, 4174836, 5218545, 6958060, 10437090, 20874180]

約数ペア:

[(1, 20874180), (2, 10437090), (3, 6958060), (4, 5218545), (5, 4174836), (6, 3479030), (10, 2087418), (12, 1739515), (15, 1391612), (20, 1043709), (30, 695806), (60, 347903), (173, 120660), (346, 60330), (519, 40220), (692, 30165), (865, 24132), (1038, 20110), (1730, 12066), (2011, 10380), (2076, 10055), (2595, 8044), (3460, 6033), (4022, 5190)]