81399942

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{541}}^1\times {\mathrm{643}}^1$

素因数の和:1205

約数の個数: 48

約数和(自身を含む): 190580208

約数和(自身を除く): 109180266

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 78, 117, 234, 541, 643, 1082, 1286, 1623, 1929, 3246, 3858, 4869, 5787, 7033, 8359, 9738, 11574, 14066, 16718, 21099, 25077, 42198, 50154, 63297, 75231, 126594, 150462, 347863, 695726, 1043589, 2087178, 3130767, 4522219, 6261534, 9044438, 13566657, 27133314, 40699971, 81399942]

約数ペア:

[(1, 81399942), (2, 40699971), (3, 27133314), (6, 13566657), (9, 9044438), (13, 6261534), (18, 4522219), (26, 3130767), (39, 2087178), (78, 1043589), (117, 695726), (234, 347863), (541, 150462), (643, 126594), (1082, 75231), (1286, 63297), (1623, 50154), (1929, 42198), (3246, 25077), (3858, 21099), (4869, 16718), (5787, 14066), (7033, 11574), (8359, 9738)]