278481312

素因数分解:

$2^5\times 3^2\times {\mathrm{71}}^1\times {\mathrm{13619}}^1$

素因数の和:13706

約数の個数: 72

約数和(自身を含む): 803144160

約数和(自身を除く): 524662848

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 71, 72, 96, 142, 144, 213, 284, 288, 426, 568, 639, 852, 1136, 1278, 1704, 2272, 2556, 3408, 5112, 6816, 10224, 13619, 20448, 27238, 40857, 54476, 81714, 108952, 122571, 163428, 217904, 245142, 326856, 435808, 490284, 653712, 966949, 980568, 1307424, 1933898, 1961136, 2900847, 3867796, 3922272, 5801694, 7735592, 8702541, 11603388, 15471184, 17405082, 23206776, 30942368, 34810164, 46413552, 69620328, 92827104, 139240656, 278481312]

約数ペア:

[(1, 278481312), (2, 139240656), (3, 92827104), (4, 69620328), (6, 46413552), (8, 34810164), (9, 30942368), (12, 23206776), (16, 17405082), (18, 15471184), (24, 11603388), (32, 8702541), (36, 7735592), (48, 5801694), (71, 3922272), (72, 3867796), (96, 2900847), (142, 1961136), (144, 1933898), (213, 1307424), (284, 980568), (288, 966949), (426, 653712), (568, 490284), (639, 435808), (852, 326856), (1136, 245142), (1278, 217904), (1704, 163428), (2272, 122571), (2556, 108952), (3408, 81714), (5112, 54476), (6816, 40857), (10224, 27238), (13619, 20448)]