20641330

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{653}}^1$

素因数の和:798

約数の個数: 32

約数和(自身を含む): 38847600

約数和(自身を除く): 18206270

約数列:

[1, 2, 5, 10, 29, 58, 109, 145, 218, 290, 545, 653, 1090, 1306, 3161, 3265, 6322, 6530, 15805, 18937, 31610, 37874, 71177, 94685, 142354, 189370, 355885, 711770, 2064133, 4128266, 10320665, 20641330]

約数ペア:

[(1, 20641330), (2, 10320665), (5, 4128266), (10, 2064133), (29, 711770), (58, 355885), (109, 189370), (145, 142354), (218, 94685), (290, 71177), (545, 37874), (653, 31610), (1090, 18937), (1306, 15805), (3161, 6530), (3265, 6322)]