18028360

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{31}}^2\times {\mathrm{67}}^1$

素因数の和:147

約数の個数: 96

約数和(自身を含む): 48617280

約数和(自身を除く): 30588920

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 31, 35, 40, 56, 62, 67, 70, 124, 134, 140, 155, 217, 248, 268, 280, 310, 335, 434, 469, 536, 620, 670, 868, 938, 961, 1085, 1240, 1340, 1736, 1876, 1922, 2077, 2170, 2345, 2680, 3752, 3844, 4154, 4340, 4690, 4805, 6727, 7688, 8308, 8680, 9380, 9610, 10385, 13454, 14539, 16616, 18760, 19220, 20770, 26908, 29078, 33635, 38440, 41540, 53816, 58156, 64387, 67270, 72695, 83080, 116312, 128774, 134540, 145390, 257548, 269080, 290780, 321935, 450709, 515096, 581560, 643870, 901418, 1287740, 1802836, 2253545, 2575480, 3605672, 4507090, 9014180, 18028360]

約数ペア:

[(1, 18028360), (2, 9014180), (4, 4507090), (5, 3605672), (7, 2575480), (8, 2253545), (10, 1802836), (14, 1287740), (20, 901418), (28, 643870), (31, 581560), (35, 515096), (40, 450709), (56, 321935), (62, 290780), (67, 269080), (70, 257548), (124, 145390), (134, 134540), (140, 128774), (155, 116312), (217, 83080), (248, 72695), (268, 67270), (280, 64387), (310, 58156), (335, 53816), (434, 41540), (469, 38440), (536, 33635), (620, 29078), (670, 26908), (868, 20770), (938, 19220), (961, 18760), (1085, 16616), (1240, 14539), (1340, 13454), (1736, 10385), (1876, 9610), (1922, 9380), (2077, 8680), (2170, 8308), (2345, 7688), (2680, 6727), (3752, 4805), (3844, 4690), (4154, 4340)]