20087804540

素因数分解:

$2^2\times 5^1\times {\mathrm{53}}^1\times {\mathrm{271}}^1\times {\mathrm{69929}}^1$

素因数の和:70262

約数の個数: 48

約数和(自身を含む): 43139537280

約数和(自身を除く): 23051732740

約数列:

[1, 2, 4, 5, 10, 20, 53, 106, 212, 265, 271, 530, 542, 1060, 1084, 1355, 2710, 5420, 14363, 28726, 57452, 69929, 71815, 139858, 143630, 279716, 287260, 349645, 699290, 1398580, 3706237, 7412474, 14824948, 18531185, 18950759, 37062370, 37901518, 74124740, 75803036, 94753795, 189507590, 379015180, 1004390227, 2008780454, 4017560908, 5021951135, 10043902270, 20087804540]

約数ペア:

[(1, 20087804540), (2, 10043902270), (4, 5021951135), (5, 4017560908), (10, 2008780454), (20, 1004390227), (53, 379015180), (106, 189507590), (212, 94753795), (265, 75803036), (271, 74124740), (530, 37901518), (542, 37062370), (1060, 18950759), (1084, 18531185), (1355, 14824948), (2710, 7412474), (5420, 3706237), (14363, 1398580), (28726, 699290), (57452, 349645), (69929, 287260), (71815, 279716), (139858, 143630)]