81286712

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{1327}}^1$

素因数の和:1396

約数の個数: 64

約数和(自身を含む): 178483200

約数和(自身を除く): 97196488

約数列:

[1, 2, 4, 8, 13, 19, 26, 31, 38, 52, 62, 76, 104, 124, 152, 247, 248, 403, 494, 589, 806, 988, 1178, 1327, 1612, 1976, 2356, 2654, 3224, 4712, 5308, 7657, 10616, 15314, 17251, 25213, 30628, 34502, 41137, 50426, 61256, 69004, 82274, 100852, 138008, 164548, 201704, 327769, 329096, 534781, 655538, 781603, 1069562, 1311076, 1563206, 2139124, 2622152, 3126412, 4278248, 6252824, 10160839, 20321678, 40643356, 81286712]

約数ペア:

[(1, 81286712), (2, 40643356), (4, 20321678), (8, 10160839), (13, 6252824), (19, 4278248), (26, 3126412), (31, 2622152), (38, 2139124), (52, 1563206), (62, 1311076), (76, 1069562), (104, 781603), (124, 655538), (152, 534781), (247, 329096), (248, 327769), (403, 201704), (494, 164548), (589, 138008), (806, 100852), (988, 82274), (1178, 69004), (1327, 61256), (1612, 50426), (1976, 41137), (2356, 34502), (2654, 30628), (3224, 25213), (4712, 17251), (5308, 15314), (7657, 10616)]