20469225

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{307}}^1$

素因数の和:454

約数の個数: 48

約数和(自身を含む): 39108608

約数和(自身を除く): 18639383

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 127, 175, 307, 381, 525, 635, 889, 921, 1535, 1905, 2149, 2667, 3175, 4445, 4605, 6447, 7675, 9525, 10745, 13335, 22225, 23025, 32235, 38989, 53725, 66675, 116967, 161175, 194945, 272923, 584835, 818769, 974725, 1364615, 2924175, 4093845, 6823075, 20469225]

約数ペア:

[(1, 20469225), (3, 6823075), (5, 4093845), (7, 2924175), (15, 1364615), (21, 974725), (25, 818769), (35, 584835), (75, 272923), (105, 194945), (127, 161175), (175, 116967), (307, 66675), (381, 53725), (525, 38989), (635, 32235), (889, 23025), (921, 22225), (1535, 13335), (1905, 10745), (2149, 9525), (2667, 7675), (3175, 6447), (4445, 4605)]