20945910

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{139}}^1\times {\mathrm{5023}}^1$

素因数の和:5172

約数の個数: 32

約数和(自身を含む): 50641920

約数和(自身を除く): 29696010

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 139, 278, 417, 695, 834, 1390, 2085, 4170, 5023, 10046, 15069, 25115, 30138, 50230, 75345, 150690, 698197, 1396394, 2094591, 3490985, 4189182, 6981970, 10472955, 20945910]

約数ペア:

[(1, 20945910), (2, 10472955), (3, 6981970), (5, 4189182), (6, 3490985), (10, 2094591), (15, 1396394), (30, 698197), (139, 150690), (278, 75345), (417, 50230), (695, 30138), (834, 25115), (1390, 15069), (2085, 10046), (4170, 5023)]