278911728

素因数分解:

$2^4\times 3^3\times {\mathrm{645629}}^1$

素因数の和:645646

約数の個数: 40

約数和(自身を含む): 800581200

約数和(自身を除く): 521669472

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 36, 48, 54, 72, 108, 144, 216, 432, 645629, 1291258, 1936887, 2582516, 3873774, 5165032, 5810661, 7747548, 10330064, 11621322, 15495096, 17431983, 23242644, 30990192, 34863966, 46485288, 69727932, 92970576, 139455864, 278911728]

約数ペア:

[(1, 278911728), (2, 139455864), (3, 92970576), (4, 69727932), (6, 46485288), (8, 34863966), (9, 30990192), (12, 23242644), (16, 17431983), (18, 15495096), (24, 11621322), (27, 10330064), (36, 7747548), (48, 5810661), (54, 5165032), (72, 3873774), (108, 2582516), (144, 1936887), (216, 1291258), (432, 645629)]