20255984

素因数分解:

$2^4\times 7^1\times {\mathrm{83}}^1\times {\mathrm{2179}}^1$

素因数の和:2277

約数の個数: 40

約数和(自身を含む): 45413760

約数和(自身を除く): 25157776

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 83, 112, 166, 332, 581, 664, 1162, 1328, 2179, 2324, 4358, 4648, 8716, 9296, 15253, 17432, 30506, 34864, 61012, 122024, 180857, 244048, 361714, 723428, 1265999, 1446856, 2531998, 2893712, 5063996, 10127992, 20255984]

約数ペア:

[(1, 20255984), (2, 10127992), (4, 5063996), (7, 2893712), (8, 2531998), (14, 1446856), (16, 1265999), (28, 723428), (56, 361714), (83, 244048), (112, 180857), (166, 122024), (332, 61012), (581, 34864), (664, 30506), (1162, 17432), (1328, 15253), (2179, 9296), (2324, 8716), (4358, 4648)]