20982440

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{22807}}^1$

素因数の和:22841

約数の個数: 32

約数和(自身を含む): 49265280

約数和(自身を除く): 28282840

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 46, 92, 115, 184, 230, 460, 920, 22807, 45614, 91228, 114035, 182456, 228070, 456140, 524561, 912280, 1049122, 2098244, 2622805, 4196488, 5245610, 10491220, 20982440]

約数ペア:

[(1, 20982440), (2, 10491220), (4, 5245610), (5, 4196488), (8, 2622805), (10, 2098244), (20, 1049122), (23, 912280), (40, 524561), (46, 456140), (92, 228070), (115, 182456), (184, 114035), (230, 91228), (460, 45614), (920, 22807)]