16390780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{47}}^2\times {\mathrm{53}}^1$

素因数の和:163

約数の個数: 72

約数和(自身を含む): 40951008

約数和(自身を除く): 24560228

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 47, 53, 70, 94, 106, 140, 188, 212, 235, 265, 329, 371, 470, 530, 658, 742, 940, 1060, 1316, 1484, 1645, 1855, 2209, 2491, 3290, 3710, 4418, 4982, 6580, 7420, 8836, 9964, 11045, 12455, 15463, 17437, 22090, 24910, 30926, 34874, 44180, 49820, 61852, 69748, 77315, 87185, 117077, 154630, 174370, 234154, 309260, 348740, 468308, 585385, 819539, 1170770, 1639078, 2341540, 3278156, 4097695, 8195390, 16390780]

約数ペア:

[(1, 16390780), (2, 8195390), (4, 4097695), (5, 3278156), (7, 2341540), (10, 1639078), (14, 1170770), (20, 819539), (28, 585385), (35, 468308), (47, 348740), (53, 309260), (70, 234154), (94, 174370), (106, 154630), (140, 117077), (188, 87185), (212, 77315), (235, 69748), (265, 61852), (329, 49820), (371, 44180), (470, 34874), (530, 30926), (658, 24910), (742, 22090), (940, 17437), (1060, 15463), (1316, 12455), (1484, 11045), (1645, 9964), (1855, 8836), (2209, 7420), (2491, 6580), (3290, 4982), (3710, 4418)]