28006580

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{251}}^1\times {\mathrm{797}}^1$

素因数の和:1064

約数の個数: 48

約数和(自身を含む): 67568256

約数和(自身を除く): 39561676

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 251, 502, 797, 1004, 1255, 1594, 1757, 2510, 3188, 3514, 3985, 5020, 5579, 7028, 7970, 8785, 11158, 15940, 17570, 22316, 27895, 35140, 55790, 111580, 200047, 400094, 800188, 1000235, 1400329, 2000470, 2800658, 4000940, 5601316, 7001645, 14003290, 28006580]

約数ペア:

[(1, 28006580), (2, 14003290), (4, 7001645), (5, 5601316), (7, 4000940), (10, 2800658), (14, 2000470), (20, 1400329), (28, 1000235), (35, 800188), (70, 400094), (140, 200047), (251, 111580), (502, 55790), (797, 35140), (1004, 27895), (1255, 22316), (1594, 17570), (1757, 15940), (2510, 11158), (3188, 8785), (3514, 7970), (3985, 7028), (5020, 5579)]