19775560

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{70627}}^1$

素因数の和:70645

約数の個数: 32

約数和(自身を含む): 50852160

約数和(自身を除く): 31076600

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 70627, 141254, 282508, 353135, 494389, 565016, 706270, 988778, 1412540, 1977556, 2471945, 2825080, 3955112, 4943890, 9887780, 19775560]

約数ペア:

[(1, 19775560), (2, 9887780), (4, 4943890), (5, 3955112), (7, 2825080), (8, 2471945), (10, 1977556), (14, 1412540), (20, 988778), (28, 706270), (35, 565016), (40, 494389), (56, 353135), (70, 282508), (140, 141254), (280, 70627)]