16458280

素因数分解:

$2^3\times 5^1\times {\mathrm{257}}^1\times {\mathrm{1601}}^1$

素因数の和:1869

約数の個数: 32

約数和(自身を含む): 37198440

約数和(自身を除く): 20740160

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 257, 514, 1028, 1285, 1601, 2056, 2570, 3202, 5140, 6404, 8005, 10280, 12808, 16010, 32020, 64040, 411457, 822914, 1645828, 2057285, 3291656, 4114570, 8229140, 16458280]

約数ペア:

[(1, 16458280), (2, 8229140), (4, 4114570), (5, 3291656), (8, 2057285), (10, 1645828), (20, 822914), (40, 411457), (257, 64040), (514, 32020), (1028, 16010), (1285, 12808), (1601, 10280), (2056, 8005), (2570, 6404), (3202, 5140)]