20516456

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{191}}^1\times {\mathrm{463}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 40089600

約数和(自身を除く): 19573144

約数列:

[1, 2, 4, 8, 29, 58, 116, 191, 232, 382, 463, 764, 926, 1528, 1852, 3704, 5539, 11078, 13427, 22156, 26854, 44312, 53708, 88433, 107416, 176866, 353732, 707464, 2564557, 5129114, 10258228, 20516456]

約数ペア:

[(1, 20516456), (2, 10258228), (4, 5129114), (8, 2564557), (29, 707464), (58, 353732), (116, 176866), (191, 107416), (232, 88433), (382, 53708), (463, 44312), (764, 26854), (926, 22156), (1528, 13427), (1852, 11078), (3704, 5539)]