19946620

素因数分解:

$2^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{7853}}^1$

素因数の和:7989

約数の個数: 24

約数和(自身を含む): 42223104

約数和(自身を除く): 22276484

約数列:

[1, 2, 4, 5, 10, 20, 127, 254, 508, 635, 1270, 2540, 7853, 15706, 31412, 39265, 78530, 157060, 997331, 1994662, 3989324, 4986655, 9973310, 19946620]

約数ペア:

[(1, 19946620), (2, 9973310), (4, 4986655), (5, 3989324), (10, 1994662), (20, 997331), (127, 157060), (254, 78530), (508, 39265), (635, 31412), (1270, 15706), (2540, 7853)]