31563760

素因数分解:

$2^4\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5557}}^1$

素因数の和:5641

約数の個数: 40

約数和(自身を含む): 74432736

約数和(自身を除く): 42868976

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 71, 80, 142, 284, 355, 568, 710, 1136, 1420, 2840, 5557, 5680, 11114, 22228, 27785, 44456, 55570, 88912, 111140, 222280, 394547, 444560, 789094, 1578188, 1972735, 3156376, 3945470, 6312752, 7890940, 15781880, 31563760]

約数ペア:

[(1, 31563760), (2, 15781880), (4, 7890940), (5, 6312752), (8, 3945470), (10, 3156376), (16, 1972735), (20, 1578188), (40, 789094), (71, 444560), (80, 394547), (142, 222280), (284, 111140), (355, 88912), (568, 55570), (710, 44456), (1136, 27785), (1420, 22228), (2840, 11114), (5557, 5680)]