20548120

素因数分解:

$2^3\times 5^1\times {\mathrm{19}}^2\times {\mathrm{1423}}^1$

素因数の和:1472

約数の個数: 48

約数和(自身を含む): 48828960

約数和(自身を除く): 28280840

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 361, 380, 722, 760, 1423, 1444, 1805, 2846, 2888, 3610, 5692, 7115, 7220, 11384, 14230, 14440, 27037, 28460, 54074, 56920, 108148, 135185, 216296, 270370, 513703, 540740, 1027406, 1081480, 2054812, 2568515, 4109624, 5137030, 10274060, 20548120]

約数ペア:

[(1, 20548120), (2, 10274060), (4, 5137030), (5, 4109624), (8, 2568515), (10, 2054812), (19, 1081480), (20, 1027406), (38, 540740), (40, 513703), (76, 270370), (95, 216296), (152, 135185), (190, 108148), (361, 56920), (380, 54074), (722, 28460), (760, 27037), (1423, 14440), (1444, 14230), (1805, 11384), (2846, 7220), (2888, 7115), (3610, 5692)]