257101755

素因数分解:

$3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{307}}^1\times {\mathrm{1801}}^1$

素因数の和:2147

約数の個数: 32

約数和(自身を含む): 426252288

約数和(自身を除く): 169150533

約数列:

[1, 3, 5, 15, 31, 93, 155, 307, 465, 921, 1535, 1801, 4605, 5403, 9005, 9517, 27015, 28551, 47585, 55831, 142755, 167493, 279155, 552907, 837465, 1658721, 2764535, 8293605, 17140117, 51420351, 85700585, 257101755]

約数ペア:

[(1, 257101755), (3, 85700585), (5, 51420351), (15, 17140117), (31, 8293605), (93, 2764535), (155, 1658721), (307, 837465), (465, 552907), (921, 279155), (1535, 167493), (1801, 142755), (4605, 55831), (5403, 47585), (9005, 28551), (9517, 27015)]