20178592016

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{281}}^1\times {\mathrm{408011}}^1$

素因数の和:408311

約数の個数: 40

約数和(自身を含む): 42802090848

約数和(自身を除く): 22623498832

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 176, 281, 562, 1124, 2248, 3091, 4496, 6182, 12364, 24728, 49456, 408011, 816022, 1632044, 3264088, 4488121, 6528176, 8976242, 17952484, 35904968, 71809936, 114651091, 229302182, 458604364, 917208728, 1261162001, 1834417456, 2522324002, 5044648004, 10089296008, 20178592016]

約数ペア:

[(1, 20178592016), (2, 10089296008), (4, 5044648004), (8, 2522324002), (11, 1834417456), (16, 1261162001), (22, 917208728), (44, 458604364), (88, 229302182), (176, 114651091), (281, 71809936), (562, 35904968), (1124, 17952484), (2248, 8976242), (3091, 6528176), (4496, 4488121), (6182, 3264088), (12364, 1632044), (24728, 816022), (49456, 408011)]