20674760

素因数分解:

$2^3\times 5^1\times {\mathrm{349}}^1\times {\mathrm{1481}}^1$

素因数の和:1841

約数の個数: 32

約数和(自身を含む): 46683000

約数和(自身を除く): 26008240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 349, 698, 1396, 1481, 1745, 2792, 2962, 3490, 5924, 6980, 7405, 11848, 13960, 14810, 29620, 59240, 516869, 1033738, 2067476, 2584345, 4134952, 5168690, 10337380, 20674760]

約数ペア:

[(1, 20674760), (2, 10337380), (4, 5168690), (5, 4134952), (8, 2584345), (10, 2067476), (20, 1033738), (40, 516869), (349, 59240), (698, 29620), (1396, 14810), (1481, 13960), (1745, 11848), (2792, 7405), (2962, 6980), (3490, 5924)]