51705520

素因数分解:

$2^4\times 5^1\times {\mathrm{31}}^1\times {\mathrm{20849}}^1$

素因数の和:20893

約数の個数: 40

約数和(自身を含む): 124099200

約数和(自身を除く): 72393680

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 31, 40, 62, 80, 124, 155, 248, 310, 496, 620, 1240, 2480, 20849, 41698, 83396, 104245, 166792, 208490, 333584, 416980, 646319, 833960, 1292638, 1667920, 2585276, 3231595, 5170552, 6463190, 10341104, 12926380, 25852760, 51705520]

約数ペア:

[(1, 51705520), (2, 25852760), (4, 12926380), (5, 10341104), (8, 6463190), (10, 5170552), (16, 3231595), (20, 2585276), (31, 1667920), (40, 1292638), (62, 833960), (80, 646319), (124, 416980), (155, 333584), (248, 208490), (310, 166792), (496, 104245), (620, 83396), (1240, 41698), (2480, 20849)]