18915677077544

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{1409}}^1\times {\mathrm{648671}}^1$

素因数の和:650298

約数の個数: 64

約数和(自身を含む): 38414355840000

約数和(自身を除く): 19498678762456

約数列:

[1, 2, 4, 8, 13, 26, 52, 104, 199, 398, 796, 1409, 1592, 2587, 2818, 5174, 5636, 10348, 11272, 18317, 20696, 36634, 73268, 146536, 280391, 560782, 648671, 1121564, 1297342, 2243128, 2594684, 3645083, 5189368, 7290166, 8432723, 14580332, 16865446, 29160664, 33730892, 67461784, 129085529, 258171058, 516342116, 913977439, 1032684232, 1678111877, 1827954878, 3356223754, 3655909756, 6712447508, 7311819512, 11881706707, 13424895016, 23763413414, 47526826828, 95053653656, 181881510361, 363763020722, 727526041444, 1455052082888, 2364459634693, 4728919269386, 9457838538772, 18915677077544]

約数ペア:

[(1, 18915677077544), (2, 9457838538772), (4, 4728919269386), (8, 2364459634693), (13, 1455052082888), (26, 727526041444), (52, 363763020722), (104, 181881510361), (199, 95053653656), (398, 47526826828), (796, 23763413414), (1409, 13424895016), (1592, 11881706707), (2587, 7311819512), (2818, 6712447508), (5174, 3655909756), (5636, 3356223754), (10348, 1827954878), (11272, 1678111877), (18317, 1032684232), (20696, 913977439), (36634, 516342116), (73268, 258171058), (146536, 129085529), (280391, 67461784), (560782, 33730892), (648671, 29160664), (1121564, 16865446), (1297342, 14580332), (2243128, 8432723), (2594684, 7290166), (3645083, 5189368)]