20812570

素因数分解:

$2^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{107}}^1\times {\mathrm{367}}^1$

素因数の和:534

約数の個数: 32

約数和(自身を含む): 38631168

約数和(自身を除く): 17818598

約数列:

[1, 2, 5, 10, 53, 106, 107, 214, 265, 367, 530, 535, 734, 1070, 1835, 3670, 5671, 11342, 19451, 28355, 38902, 39269, 56710, 78538, 97255, 194510, 196345, 392690, 2081257, 4162514, 10406285, 20812570]

約数ペア:

[(1, 20812570), (2, 10406285), (5, 4162514), (10, 2081257), (53, 392690), (106, 196345), (107, 194510), (214, 97255), (265, 78538), (367, 56710), (530, 39269), (535, 38902), (734, 28355), (1070, 19451), (1835, 11342), (3670, 5671)]