281355568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{769}}^1\times {\mathrm{1759}}^1$

素因数の和:2549

約数の個数: 40

約数和(自身を含む): 588156800

約数和(自身を除く): 306801232

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 769, 1538, 1759, 3076, 3518, 6152, 7036, 9997, 12304, 14072, 19994, 22867, 28144, 39988, 45734, 79976, 91468, 159952, 182936, 365872, 1352671, 2705342, 5410684, 10821368, 17584723, 21642736, 35169446, 70338892, 140677784, 281355568]

約数ペア:

[(1, 281355568), (2, 140677784), (4, 70338892), (8, 35169446), (13, 21642736), (16, 17584723), (26, 10821368), (52, 5410684), (104, 2705342), (208, 1352671), (769, 365872), (1538, 182936), (1759, 159952), (3076, 91468), (3518, 79976), (6152, 45734), (7036, 39988), (9997, 28144), (12304, 22867), (14072, 19994)]