20820342008

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{919}}^1\times {\mathrm{25981}}^1$

素因数の和:27015

約数の個数: 32

約数和(自身を含む): 39440676000

約数和(自身を除く): 18620333992

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 919, 1838, 3676, 7352, 25981, 51962, 100171, 103924, 200342, 207848, 400684, 801368, 2831929, 5663858, 11327716, 22655432, 23876539, 47753078, 95506156, 191012312, 2602542751, 5205085502, 10410171004, 20820342008]

約数ペア:

[(1, 20820342008), (2, 10410171004), (4, 5205085502), (8, 2602542751), (109, 191012312), (218, 95506156), (436, 47753078), (872, 23876539), (919, 22655432), (1838, 11327716), (3676, 5663858), (7352, 2831929), (25981, 801368), (51962, 400684), (100171, 207848), (103924, 200342)]