8420355

素因数分解:

$3^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1223}}^1$

素因数の和:1257

約数の個数: 40

約数和(自身を含む): 15995232

約数和(自身を除く): 7574877

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 81, 85, 135, 153, 255, 405, 459, 765, 1223, 1377, 2295, 3669, 6115, 6885, 11007, 18345, 20791, 33021, 55035, 62373, 99063, 103955, 165105, 187119, 311865, 495315, 561357, 935595, 1684071, 2806785, 8420355]

約数ペア:

[(1, 8420355), (3, 2806785), (5, 1684071), (9, 935595), (15, 561357), (17, 495315), (27, 311865), (45, 187119), (51, 165105), (81, 103955), (85, 99063), (135, 62373), (153, 55035), (255, 33021), (405, 20791), (459, 18345), (765, 11007), (1223, 6885), (1377, 6115), (2295, 3669)]