28297605

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{191}}^1$

素因数の和:306

約数の個数: 64

約数和(自身を含む): 55738368

約数和(自身を除く): 27440763

約数列:

[1, 3, 5, 7, 15, 17, 21, 35, 51, 83, 85, 105, 119, 191, 249, 255, 357, 415, 573, 581, 595, 955, 1245, 1337, 1411, 1743, 1785, 2865, 2905, 3247, 4011, 4233, 6685, 7055, 8715, 9741, 9877, 15853, 16235, 20055, 21165, 22729, 29631, 47559, 48705, 49385, 68187, 79265, 110971, 113645, 148155, 237795, 269501, 332913, 340935, 554855, 808503, 1347505, 1664565, 1886507, 4042515, 5659521, 9432535, 28297605]

約数ペア:

[(1, 28297605), (3, 9432535), (5, 5659521), (7, 4042515), (15, 1886507), (17, 1664565), (21, 1347505), (35, 808503), (51, 554855), (83, 340935), (85, 332913), (105, 269501), (119, 237795), (191, 148155), (249, 113645), (255, 110971), (357, 79265), (415, 68187), (573, 49385), (581, 48705), (595, 47559), (955, 29631), (1245, 22729), (1337, 21165), (1411, 20055), (1743, 16235), (1785, 15853), (2865, 9877), (2905, 9741), (3247, 8715), (4011, 7055), (4233, 6685)]