278049328

素因数分解:

$2^4\times {\mathrm{257}}^1\times {\mathrm{67619}}^1$

素因数の和:67884

約数の個数: 20

約数和(自身を含む): 540824760

約数和(自身を除く): 262775432

約数列:

[1, 2, 4, 8, 16, 257, 514, 1028, 2056, 4112, 67619, 135238, 270476, 540952, 1081904, 17378083, 34756166, 69512332, 139024664, 278049328]

約数ペア:

[(1, 278049328), (2, 139024664), (4, 69512332), (8, 34756166), (16, 17378083), (257, 1081904), (514, 540952), (1028, 270476), (2056, 135238), (4112, 67619)]