39987915

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:340

約数の個数: 64

約数和(自身を含む): 74898432

約数和(自身を除く): 34910517

約数列:

[1, 3, 5, 11, 15, 23, 33, 41, 55, 69, 115, 123, 165, 205, 253, 257, 345, 451, 615, 759, 771, 943, 1265, 1285, 1353, 2255, 2827, 2829, 3795, 3855, 4715, 5911, 6765, 8481, 10373, 10537, 14135, 14145, 17733, 29555, 31119, 31611, 42405, 51865, 52685, 65021, 88665, 115907, 155595, 158055, 195063, 242351, 325105, 347721, 579535, 727053, 975315, 1211755, 1738605, 2665861, 3635265, 7997583, 13329305, 39987915]

約数ペア:

[(1, 39987915), (3, 13329305), (5, 7997583), (11, 3635265), (15, 2665861), (23, 1738605), (33, 1211755), (41, 975315), (55, 727053), (69, 579535), (115, 347721), (123, 325105), (165, 242351), (205, 195063), (253, 158055), (257, 155595), (345, 115907), (451, 88665), (615, 65021), (759, 52685), (771, 51865), (943, 42405), (1265, 31611), (1285, 31119), (1353, 29555), (2255, 17733), (2827, 14145), (2829, 14135), (3795, 10537), (3855, 10373), (4715, 8481), (5911, 6765)]