65419520

素因数分解:

$2^8\times 5^1\times {\mathrm{51109}}^1$

素因数の和:51130

約数の個数: 36

約数和(自身を含む): 156703260

約数和(自身を除く): 91283740

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 256, 320, 640, 1280, 51109, 102218, 204436, 255545, 408872, 511090, 817744, 1022180, 1635488, 2044360, 3270976, 4088720, 6541952, 8177440, 13083904, 16354880, 32709760, 65419520]

約数ペア:

[(1, 65419520), (2, 32709760), (4, 16354880), (5, 13083904), (8, 8177440), (10, 6541952), (16, 4088720), (20, 3270976), (32, 2044360), (40, 1635488), (64, 1022180), (80, 817744), (128, 511090), (160, 408872), (256, 255545), (320, 204436), (640, 102218), (1280, 51109)]