256309612

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{199}}^1$

素因数の和:311

約数の個数: 96

約数和(自身を含む): 541900800

約数和(自身を除く): 285591188

約数列:

[1, 2, 4, 13, 17, 26, 31, 34, 47, 52, 62, 68, 94, 124, 188, 199, 221, 398, 403, 442, 527, 611, 796, 799, 806, 884, 1054, 1222, 1457, 1598, 1612, 2108, 2444, 2587, 2914, 3196, 3383, 5174, 5828, 6169, 6766, 6851, 9353, 10348, 10387, 12338, 13532, 13702, 18706, 18941, 20774, 24676, 24769, 27404, 37412, 37882, 41548, 43979, 49538, 75764, 80197, 87958, 99076, 104873, 121589, 159001, 160394, 175916, 209746, 243178, 289943, 318002, 320788, 321997, 419492, 486356, 579886, 636004, 643994, 1159772, 1287988, 1363349, 2067013, 2726698, 3769259, 4134026, 4929031, 5453396, 7538518, 8268052, 9858062, 15077036, 19716124, 64077403, 128154806, 256309612]

約数ペア:

[(1, 256309612), (2, 128154806), (4, 64077403), (13, 19716124), (17, 15077036), (26, 9858062), (31, 8268052), (34, 7538518), (47, 5453396), (52, 4929031), (62, 4134026), (68, 3769259), (94, 2726698), (124, 2067013), (188, 1363349), (199, 1287988), (221, 1159772), (398, 643994), (403, 636004), (442, 579886), (527, 486356), (611, 419492), (796, 321997), (799, 320788), (806, 318002), (884, 289943), (1054, 243178), (1222, 209746), (1457, 175916), (1598, 160394), (1612, 159001), (2108, 121589), (2444, 104873), (2587, 99076), (2914, 87958), (3196, 80197), (3383, 75764), (5174, 49538), (5828, 43979), (6169, 41548), (6766, 37882), (6851, 37412), (9353, 27404), (10348, 24769), (10387, 24676), (12338, 20774), (13532, 18941), (13702, 18706)]