20612644

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:740

約数の個数: 48

約数和(自身を含む): 42273280

約数和(自身を除く): 21660636

約数列:

[1, 2, 4, 13, 19, 26, 31, 38, 52, 62, 76, 124, 247, 403, 494, 589, 673, 806, 988, 1178, 1346, 1612, 2356, 2692, 7657, 8749, 12787, 15314, 17498, 20863, 25574, 30628, 34996, 41726, 51148, 83452, 166231, 271219, 332462, 396397, 542438, 664924, 792794, 1084876, 1585588, 5153161, 10306322, 20612644]

約数ペア:

[(1, 20612644), (2, 10306322), (4, 5153161), (13, 1585588), (19, 1084876), (26, 792794), (31, 664924), (38, 542438), (52, 396397), (62, 332462), (76, 271219), (124, 166231), (247, 83452), (403, 51148), (494, 41726), (589, 34996), (673, 30628), (806, 25574), (988, 20863), (1178, 17498), (1346, 15314), (1612, 12787), (2356, 8749), (2692, 7657)]