81871232

素因数分解:

$2^7\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{293}}^1$

素因数の和:403

約数の個数: 64

約数和(自身を含む): 170931600

約数和(自身を除く): 89060368

約数列:

[1, 2, 4, 8, 16, 32, 37, 59, 64, 74, 118, 128, 148, 236, 293, 296, 472, 586, 592, 944, 1172, 1184, 1888, 2183, 2344, 2368, 3776, 4366, 4688, 4736, 7552, 8732, 9376, 10841, 17287, 17464, 18752, 21682, 34574, 34928, 37504, 43364, 69148, 69856, 86728, 138296, 139712, 173456, 276592, 279424, 346912, 553184, 639619, 693824, 1106368, 1279238, 1387648, 2212736, 2558476, 5116952, 10233904, 20467808, 40935616, 81871232]

約数ペア:

[(1, 81871232), (2, 40935616), (4, 20467808), (8, 10233904), (16, 5116952), (32, 2558476), (37, 2212736), (59, 1387648), (64, 1279238), (74, 1106368), (118, 693824), (128, 639619), (148, 553184), (236, 346912), (293, 279424), (296, 276592), (472, 173456), (586, 139712), (592, 138296), (944, 86728), (1172, 69856), (1184, 69148), (1888, 43364), (2183, 37504), (2344, 34928), (2368, 34574), (3776, 21682), (4366, 18752), (4688, 17464), (4736, 17287), (7552, 10841), (8732, 9376)]