81089456

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{42589}}^1$

素因数の和:42621

約数の個数: 40

約数和(自身を含む): 190121760

約数和(自身を除く): 109032304

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 112, 119, 136, 238, 272, 476, 952, 1904, 42589, 85178, 170356, 298123, 340712, 596246, 681424, 724013, 1192492, 1448026, 2384984, 2896052, 4769968, 5068091, 5792104, 10136182, 11584208, 20272364, 40544728, 81089456]

約数ペア:

[(1, 81089456), (2, 40544728), (4, 20272364), (7, 11584208), (8, 10136182), (14, 5792104), (16, 5068091), (17, 4769968), (28, 2896052), (34, 2384984), (56, 1448026), (68, 1192492), (112, 724013), (119, 681424), (136, 596246), (238, 340712), (272, 298123), (476, 170356), (952, 85178), (1904, 42589)]