128513834

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{109}}^1$

素因数の和:243

約数の個数: 48

約数和(自身を含む): 217261440

約数和(自身を除く): 88747606

約数列:

[1, 2, 19, 23, 38, 46, 71, 109, 142, 218, 361, 437, 722, 874, 1349, 1633, 2071, 2507, 2698, 3266, 4142, 5014, 7739, 8303, 15478, 16606, 25631, 31027, 39349, 47633, 51262, 62054, 78698, 95266, 147041, 177997, 294082, 355994, 589513, 905027, 1179026, 1810054, 2793779, 3381943, 5587558, 6763886, 64256917, 128513834]

約数ペア:

[(1, 128513834), (2, 64256917), (19, 6763886), (23, 5587558), (38, 3381943), (46, 2793779), (71, 1810054), (109, 1179026), (142, 905027), (218, 589513), (361, 355994), (437, 294082), (722, 177997), (874, 147041), (1349, 95266), (1633, 78698), (2071, 62054), (2507, 51262), (2698, 47633), (3266, 39349), (4142, 31027), (5014, 25631), (7739, 16606), (8303, 15478)]