20930576

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{571}}^1$

素因数の和:687

約数の個数: 40

約数和(自身を含む): 42556800

約数和(自身を除く): 21626224

約数列:

[1, 2, 4, 8, 16, 29, 58, 79, 116, 158, 232, 316, 464, 571, 632, 1142, 1264, 2284, 2291, 4568, 4582, 9136, 9164, 16559, 18328, 33118, 36656, 45109, 66236, 90218, 132472, 180436, 264944, 360872, 721744, 1308161, 2616322, 5232644, 10465288, 20930576]

約数ペア:

[(1, 20930576), (2, 10465288), (4, 5232644), (8, 2616322), (16, 1308161), (29, 721744), (58, 360872), (79, 264944), (116, 180436), (158, 132472), (232, 90218), (316, 66236), (464, 45109), (571, 36656), (632, 33118), (1142, 18328), (1264, 16559), (2284, 9164), (2291, 9136), (4568, 4582)]