20327702978

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{617}}^1\times {\mathrm{643}}^1$

素因数の和:1427

約数の個数: 64

約数和(自身を含む): 35590036608

約数和(自身を除く): 15262333630

約数列:

[1, 2, 11, 17, 22, 34, 137, 187, 274, 374, 617, 643, 1234, 1286, 1507, 2329, 3014, 4658, 6787, 7073, 10489, 10931, 13574, 14146, 20978, 21862, 25619, 51238, 84529, 88091, 115379, 120241, 169058, 176182, 230758, 240482, 396731, 793462, 929819, 969001, 1436993, 1497547, 1859638, 1938002, 2873986, 2995094, 4364041, 6744427, 8728082, 13488854, 15806923, 16473017, 31613846, 32946034, 54352147, 74188697, 108704294, 148377394, 597873617, 923986499, 1195747234, 1847972998, 10163851489, 20327702978]

約数ペア:

[(1, 20327702978), (2, 10163851489), (11, 1847972998), (17, 1195747234), (22, 923986499), (34, 597873617), (137, 148377394), (187, 108704294), (274, 74188697), (374, 54352147), (617, 32946034), (643, 31613846), (1234, 16473017), (1286, 15806923), (1507, 13488854), (2329, 8728082), (3014, 6744427), (4658, 4364041), (6787, 2995094), (7073, 2873986), (10489, 1938002), (10931, 1859638), (13574, 1497547), (14146, 1436993), (20978, 969001), (21862, 929819), (25619, 793462), (51238, 396731), (84529, 240482), (88091, 230758), (115379, 176182), (120241, 169058)]