13206820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{347}}^1$

素因数の和:540

約数の個数: 48

約数和(自身を含む): 30518208

約数和(自身を除く): 17311388

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 173, 220, 346, 347, 692, 694, 865, 1388, 1730, 1735, 1903, 3460, 3470, 3806, 3817, 6940, 7612, 7634, 9515, 15268, 19030, 19085, 38060, 38170, 60031, 76340, 120062, 240124, 300155, 600310, 660341, 1200620, 1320682, 2641364, 3301705, 6603410, 13206820]

約数ペア:

[(1, 13206820), (2, 6603410), (4, 3301705), (5, 2641364), (10, 1320682), (11, 1200620), (20, 660341), (22, 600310), (44, 300155), (55, 240124), (110, 120062), (173, 76340), (220, 60031), (346, 38170), (347, 38060), (692, 19085), (694, 19030), (865, 15268), (1388, 9515), (1730, 7634), (1735, 7612), (1903, 6940), (3460, 3817), (3470, 3806)]