289265420

素因数分解:

$2^2\times 5^1\times {\mathrm{73}}^1\times {\mathrm{198127}}^1$

素因数の和:198209

約数の個数: 24

約数和(自身を含む): 615781824

約数和(自身を除く): 326516404

約数列:

[1, 2, 4, 5, 10, 20, 73, 146, 292, 365, 730, 1460, 198127, 396254, 792508, 990635, 1981270, 3962540, 14463271, 28926542, 57853084, 72316355, 144632710, 289265420]

約数ペア:

[(1, 289265420), (2, 144632710), (4, 72316355), (5, 57853084), (10, 28926542), (20, 14463271), (73, 3962540), (146, 1981270), (292, 990635), (365, 792508), (730, 396254), (1460, 198127)]