128045983160

素因数分解:

$2^3\times 5^1\times {\mathrm{41}}^1\times {\mathrm{78076819}}^1$

素因数の和:78076871

約数の個数: 32

約数和(自身を含む): 295130379600

約数和(自身を除く): 167084396440

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 82, 164, 205, 328, 410, 820, 1640, 78076819, 156153638, 312307276, 390384095, 624614552, 780768190, 1561536380, 3123072760, 3201149579, 6402299158, 12804598316, 16005747895, 25609196632, 32011495790, 64022991580, 128045983160]

約数ペア:

[(1, 128045983160), (2, 64022991580), (4, 32011495790), (5, 25609196632), (8, 16005747895), (10, 12804598316), (20, 6402299158), (40, 3201149579), (41, 3123072760), (82, 1561536380), (164, 780768190), (205, 624614552), (328, 390384095), (410, 312307276), (820, 156153638), (1640, 78076819)]