81229560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{1549}}^1$

素因数の和:1605

約数の個数: 128

約数和(自身を含む): 267840000

約数和(自身を除く): 186610440

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 19, 20, 23, 24, 30, 38, 40, 46, 57, 60, 69, 76, 92, 95, 114, 115, 120, 138, 152, 184, 190, 228, 230, 276, 285, 345, 380, 437, 456, 460, 552, 570, 690, 760, 874, 920, 1140, 1311, 1380, 1549, 1748, 2185, 2280, 2622, 2760, 3098, 3496, 4370, 4647, 5244, 6196, 6555, 7745, 8740, 9294, 10488, 12392, 13110, 15490, 17480, 18588, 23235, 26220, 29431, 30980, 35627, 37176, 46470, 52440, 58862, 61960, 71254, 88293, 92940, 106881, 117724, 142508, 147155, 176586, 178135, 185880, 213762, 235448, 285016, 294310, 353172, 356270, 427524, 441465, 534405, 588620, 676913, 706344, 712540, 855048, 882930, 1068810, 1177240, 1353826, 1425080, 1765860, 2030739, 2137620, 2707652, 3384565, 3531720, 4061478, 4275240, 5415304, 6769130, 8122956, 10153695, 13538260, 16245912, 20307390, 27076520, 40614780, 81229560]

約数ペア:

[(1, 81229560), (2, 40614780), (3, 27076520), (4, 20307390), (5, 16245912), (6, 13538260), (8, 10153695), (10, 8122956), (12, 6769130), (15, 5415304), (19, 4275240), (20, 4061478), (23, 3531720), (24, 3384565), (30, 2707652), (38, 2137620), (40, 2030739), (46, 1765860), (57, 1425080), (60, 1353826), (69, 1177240), (76, 1068810), (92, 882930), (95, 855048), (114, 712540), (115, 706344), (120, 676913), (138, 588620), (152, 534405), (184, 441465), (190, 427524), (228, 356270), (230, 353172), (276, 294310), (285, 285016), (345, 235448), (380, 213762), (437, 185880), (456, 178135), (460, 176586), (552, 147155), (570, 142508), (690, 117724), (760, 106881), (874, 92940), (920, 88293), (1140, 71254), (1311, 61960), (1380, 58862), (1549, 52440), (1748, 46470), (2185, 37176), (2280, 35627), (2622, 30980), (2760, 29431), (3098, 26220), (3496, 23235), (4370, 18588), (4647, 17480), (5244, 15490), (6196, 13110), (6555, 12392), (7745, 10488), (8740, 9294)]