2108778875

素因数分解:

$5^3\times 7^1\times {\mathrm{31}}^1\times {\mathrm{77743}}^1$

素因数の和:77796

約数の個数: 32

約数和(自身を含む): 3104784384

約数和(自身を除く): 996005509

約数列:

[1, 5, 7, 25, 31, 35, 125, 155, 175, 217, 775, 875, 1085, 3875, 5425, 27125, 77743, 388715, 544201, 1943575, 2410033, 2721005, 9717875, 12050165, 13605025, 16870231, 60250825, 68025125, 84351155, 301254125, 421755775, 2108778875]

約数ペア:

[(1, 2108778875), (5, 421755775), (7, 301254125), (25, 84351155), (31, 68025125), (35, 60250825), (125, 16870231), (155, 13605025), (175, 12050165), (217, 9717875), (775, 2721005), (875, 2410033), (1085, 1943575), (3875, 544201), (5425, 388715), (27125, 77743)]