20882015

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:839

約数の個数: 32

約数和(自身を含む): 31712256

約数和(自身を除く): 10830241

約数列:

[1, 5, 7, 11, 35, 55, 73, 77, 365, 385, 511, 743, 803, 2555, 3715, 4015, 5201, 5621, 8173, 26005, 28105, 40865, 54239, 57211, 271195, 286055, 379673, 596629, 1898365, 2983145, 4176403, 20882015]

約数ペア:

[(1, 20882015), (5, 4176403), (7, 2983145), (11, 1898365), (35, 596629), (55, 379673), (73, 286055), (77, 271195), (365, 57211), (385, 54239), (511, 40865), (743, 28105), (803, 26005), (2555, 8173), (3715, 5621), (4015, 5201)]