278310897

素因数分解:

$3^4\times {\mathrm{53}}^1\times {\mathrm{241}}^1\times {\mathrm{269}}^1$

素因数の和:575

約数の個数: 40

約数和(自身を含む): 426931560

約数和(自身を除く): 148620663

約数列:

[1, 3, 9, 27, 53, 81, 159, 241, 269, 477, 723, 807, 1431, 2169, 2421, 4293, 6507, 7263, 12773, 14257, 19521, 21789, 38319, 42771, 64829, 114957, 128313, 194487, 344871, 384939, 583461, 1034613, 1154817, 1750383, 3435937, 5251149, 10307811, 30923433, 92770299, 278310897]

約数ペア:

[(1, 278310897), (3, 92770299), (9, 30923433), (27, 10307811), (53, 5251149), (81, 3435937), (159, 1750383), (241, 1154817), (269, 1034613), (477, 583461), (723, 384939), (807, 344871), (1431, 194487), (2169, 128313), (2421, 114957), (4293, 64829), (6507, 42771), (7263, 38319), (12773, 21789), (14257, 19521)]