77131460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{550939}}^1$

素因数の和:550955

約数の個数: 24

約数和(自身を含む): 185115840

約数和(自身を除く): 107984380

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 550939, 1101878, 2203756, 2754695, 3856573, 5509390, 7713146, 11018780, 15426292, 19282865, 38565730, 77131460]

約数ペア:

[(1, 77131460), (2, 38565730), (4, 19282865), (5, 15426292), (7, 11018780), (10, 7713146), (14, 5509390), (20, 3856573), (28, 2754695), (35, 2203756), (70, 1101878), (140, 550939)]