280059921

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{137}}^1\times {\mathrm{431}}^1$

素因数の和:622

約数の個数: 48

約数和(自身を含む): 446404608

約数和(自身を除く): 166344687

約数列:

[1, 3, 9, 17, 31, 51, 93, 137, 153, 279, 411, 431, 527, 1233, 1293, 1581, 2329, 3879, 4247, 4743, 6987, 7327, 12741, 13361, 20961, 21981, 38223, 40083, 59047, 65943, 72199, 120249, 177141, 216597, 227137, 531423, 649791, 681411, 1003799, 1830457, 2044233, 3011397, 5491371, 9034191, 16474113, 31117769, 93353307, 280059921]

約数ペア:

[(1, 280059921), (3, 93353307), (9, 31117769), (17, 16474113), (31, 9034191), (51, 5491371), (93, 3011397), (137, 2044233), (153, 1830457), (279, 1003799), (411, 681411), (431, 649791), (527, 531423), (1233, 227137), (1293, 216597), (1581, 177141), (2329, 120249), (3879, 72199), (4247, 65943), (4743, 59047), (6987, 40083), (7327, 38223), (12741, 21981), (13361, 20961)]