268182440

素因数分解:

$2^3\times 5^1\times {\mathrm{643}}^1\times {\mathrm{10427}}^1$

素因数の和:11081

約数の個数: 32

約数和(自身を含む): 604406880

約数和(自身を除く): 336224440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 643, 1286, 2572, 3215, 5144, 6430, 10427, 12860, 20854, 25720, 41708, 52135, 83416, 104270, 208540, 417080, 6704561, 13409122, 26818244, 33522805, 53636488, 67045610, 134091220, 268182440]

約数ペア:

[(1, 268182440), (2, 134091220), (4, 67045610), (5, 53636488), (8, 33522805), (10, 26818244), (20, 13409122), (40, 6704561), (643, 417080), (1286, 208540), (2572, 104270), (3215, 83416), (5144, 52135), (6430, 41708), (10427, 25720), (12860, 20854)]