28786010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2591}}^1$

素因数の和:2710

約数の個数: 32

約数和(自身を含む): 57106944

約数和(自身を除く): 28320934

約数列:

[1, 2, 5, 10, 11, 22, 55, 101, 110, 202, 505, 1010, 1111, 2222, 2591, 5182, 5555, 11110, 12955, 25910, 28501, 57002, 142505, 261691, 285010, 523382, 1308455, 2616910, 2878601, 5757202, 14393005, 28786010]

約数ペア:

[(1, 28786010), (2, 14393005), (5, 5757202), (10, 2878601), (11, 2616910), (22, 1308455), (55, 523382), (101, 285010), (110, 261691), (202, 142505), (505, 57002), (1010, 28501), (1111, 25910), (2222, 12955), (2591, 11110), (5182, 5555)]