81064016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{311}}^1\times {\mathrm{1481}}^1$

素因数の和:1811

約数の個数: 40

約数和(自身を含む): 172006848

約数和(自身を除く): 90942832

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 311, 622, 1244, 1481, 2488, 2962, 3421, 4976, 5924, 6842, 11848, 13684, 16291, 23696, 27368, 32582, 54736, 65164, 130328, 260656, 460591, 921182, 1842364, 3684728, 5066501, 7369456, 10133002, 20266004, 40532008, 81064016]

約数ペア:

[(1, 81064016), (2, 40532008), (4, 20266004), (8, 10133002), (11, 7369456), (16, 5066501), (22, 3684728), (44, 1842364), (88, 921182), (176, 460591), (311, 260656), (622, 130328), (1244, 65164), (1481, 54736), (2488, 32582), (2962, 27368), (3421, 23696), (4976, 16291), (5924, 13684), (6842, 11848)]