18065950

素因数分解:

$2^1\times 5^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{727}}^1$

素因数の和:817

約数の個数: 48

約数和(自身を含む): 38997504

約数和(自身を除く): 20931554

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 50, 70, 71, 142, 175, 350, 355, 497, 710, 727, 994, 1454, 1775, 2485, 3550, 3635, 4970, 5089, 7270, 10178, 12425, 18175, 24850, 25445, 36350, 50890, 51617, 103234, 127225, 254450, 258085, 361319, 516170, 722638, 1290425, 1806595, 2580850, 3613190, 9032975, 18065950]

約数ペア:

[(1, 18065950), (2, 9032975), (5, 3613190), (7, 2580850), (10, 1806595), (14, 1290425), (25, 722638), (35, 516170), (50, 361319), (70, 258085), (71, 254450), (142, 127225), (175, 103234), (350, 51617), (355, 50890), (497, 36350), (710, 25445), (727, 24850), (994, 18175), (1454, 12425), (1775, 10178), (2485, 7270), (3550, 5089), (3635, 4970)]