20418540

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{17911}}^1$

素因数の和:17942

約数の個数: 48

約数和(自身を含む): 60184320

約数和(自身を除く): 39765780

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 19, 20, 30, 38, 57, 60, 76, 95, 114, 190, 228, 285, 380, 570, 1140, 17911, 35822, 53733, 71644, 89555, 107466, 179110, 214932, 268665, 340309, 358220, 537330, 680618, 1020927, 1074660, 1361236, 1701545, 2041854, 3403090, 4083708, 5104635, 6806180, 10209270, 20418540]

約数ペア:

[(1, 20418540), (2, 10209270), (3, 6806180), (4, 5104635), (5, 4083708), (6, 3403090), (10, 2041854), (12, 1701545), (15, 1361236), (19, 1074660), (20, 1020927), (30, 680618), (38, 537330), (57, 358220), (60, 340309), (76, 268665), (95, 214932), (114, 179110), (190, 107466), (228, 89555), (285, 71644), (380, 53733), (570, 35822), (1140, 17911)]