19799860

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{8761}}^1$

素因数の和:8883

約数の個数: 24

約数和(自身を含む): 41952456

約数和(自身を除く): 22152596

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 8761, 17522, 35044, 43805, 87610, 175220, 989993, 1979986, 3959972, 4949965, 9899930, 19799860]

約数ペア:

[(1, 19799860), (2, 9899930), (4, 4949965), (5, 3959972), (10, 1979986), (20, 989993), (113, 175220), (226, 87610), (452, 43805), (565, 35044), (1130, 17522), (2260, 8761)]