20085728

素因数分解:

$2^5\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{911}}^1$

素因数の和:987

約数の個数: 48

約数和(自身を含む): 43436736

約数和(自身を除く): 23351008

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 52, 53, 104, 106, 208, 212, 416, 424, 689, 848, 911, 1378, 1696, 1822, 2756, 3644, 5512, 7288, 11024, 11843, 14576, 22048, 23686, 29152, 47372, 48283, 94744, 96566, 189488, 193132, 378976, 386264, 627679, 772528, 1255358, 1545056, 2510716, 5021432, 10042864, 20085728]

約数ペア:

[(1, 20085728), (2, 10042864), (4, 5021432), (8, 2510716), (13, 1545056), (16, 1255358), (26, 772528), (32, 627679), (52, 386264), (53, 378976), (104, 193132), (106, 189488), (208, 96566), (212, 94744), (416, 48283), (424, 47372), (689, 29152), (848, 23686), (911, 22048), (1378, 14576), (1696, 11843), (1822, 11024), (2756, 7288), (3644, 5512)]