8217540

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:729

約数の個数: 72

約数和(自身を含む): 25316928

約数和(自身を除く): 17099388

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 71, 90, 142, 180, 213, 284, 355, 426, 639, 643, 710, 852, 1065, 1278, 1286, 1420, 1929, 2130, 2556, 2572, 3195, 3215, 3858, 4260, 5787, 6390, 6430, 7716, 9645, 11574, 12780, 12860, 19290, 23148, 28935, 38580, 45653, 57870, 91306, 115740, 136959, 182612, 228265, 273918, 410877, 456530, 547836, 684795, 821754, 913060, 1369590, 1643508, 2054385, 2739180, 4108770, 8217540]

約数ペア:

[(1, 8217540), (2, 4108770), (3, 2739180), (4, 2054385), (5, 1643508), (6, 1369590), (9, 913060), (10, 821754), (12, 684795), (15, 547836), (18, 456530), (20, 410877), (30, 273918), (36, 228265), (45, 182612), (60, 136959), (71, 115740), (90, 91306), (142, 57870), (180, 45653), (213, 38580), (284, 28935), (355, 23148), (426, 19290), (639, 12860), (643, 12780), (710, 11574), (852, 9645), (1065, 7716), (1278, 6430), (1286, 6390), (1420, 5787), (1929, 4260), (2130, 3858), (2556, 3215), (2572, 3195)]