81497464

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{61}}^1\times {\mathrm{137}}^1$

素因数の和:280

約数の個数: 64

約数和(自身を含む): 166328640

約数和(自身を除く): 84831176

約数列:

[1, 2, 4, 8, 23, 46, 53, 61, 92, 106, 122, 137, 184, 212, 244, 274, 424, 488, 548, 1096, 1219, 1403, 2438, 2806, 3151, 3233, 4876, 5612, 6302, 6466, 7261, 8357, 9752, 11224, 12604, 12932, 14522, 16714, 25208, 25864, 29044, 33428, 58088, 66856, 74359, 148718, 167003, 192211, 297436, 334006, 384422, 442921, 594872, 668012, 768844, 885842, 1336024, 1537688, 1771684, 3543368, 10187183, 20374366, 40748732, 81497464]

約数ペア:

[(1, 81497464), (2, 40748732), (4, 20374366), (8, 10187183), (23, 3543368), (46, 1771684), (53, 1537688), (61, 1336024), (92, 885842), (106, 768844), (122, 668012), (137, 594872), (184, 442921), (212, 384422), (244, 334006), (274, 297436), (424, 192211), (488, 167003), (548, 148718), (1096, 74359), (1219, 66856), (1403, 58088), (2438, 33428), (2806, 29044), (3151, 25864), (3233, 25208), (4876, 16714), (5612, 14522), (6302, 12932), (6466, 12604), (7261, 11224), (8357, 9752)]