20724180

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{7349}}^1$

素因数の和:7408

約数の個数: 48

約数和(自身を含む): 59270400

約数和(自身を除く): 38546220

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 47, 60, 94, 141, 188, 235, 282, 470, 564, 705, 940, 1410, 2820, 7349, 14698, 22047, 29396, 36745, 44094, 73490, 88188, 110235, 146980, 220470, 345403, 440940, 690806, 1036209, 1381612, 1727015, 2072418, 3454030, 4144836, 5181045, 6908060, 10362090, 20724180]

約数ペア:

[(1, 20724180), (2, 10362090), (3, 6908060), (4, 5181045), (5, 4144836), (6, 3454030), (10, 2072418), (12, 1727015), (15, 1381612), (20, 1036209), (30, 690806), (47, 440940), (60, 345403), (94, 220470), (141, 146980), (188, 110235), (235, 88188), (282, 73490), (470, 44094), (564, 36745), (705, 29396), (940, 22047), (1410, 14698), (2820, 7349)]