641863655

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{673}}^1$

素因数の和:851

約数の個数: 32

約数和(自身を含む): 812358720

約数和(自身を除く): 170495065

約数列:

[1, 5, 53, 59, 61, 265, 295, 305, 673, 3127, 3233, 3365, 3599, 15635, 16165, 17995, 35669, 39707, 41053, 178345, 190747, 198535, 205265, 953735, 2104471, 2175809, 2422127, 10522355, 10879045, 12110635, 128372731, 641863655]

約数ペア:

[(1, 641863655), (5, 128372731), (53, 12110635), (59, 10879045), (61, 10522355), (265, 2422127), (295, 2175809), (305, 2104471), (673, 953735), (3127, 205265), (3233, 198535), (3365, 190747), (3599, 178345), (15635, 41053), (16165, 39707), (17995, 35669)]