81836760

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{149}}^1\times {\mathrm{199}}^1$

素因数の和:385

約数の個数: 128

約数和(自身を含む): 259200000

約数和(自身を除く): 177363240

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 46, 60, 69, 92, 115, 120, 138, 149, 184, 199, 230, 276, 298, 345, 398, 447, 460, 552, 596, 597, 690, 745, 796, 894, 920, 995, 1192, 1194, 1380, 1490, 1592, 1788, 1990, 2235, 2388, 2760, 2980, 2985, 3427, 3576, 3980, 4470, 4577, 4776, 5960, 5970, 6854, 7960, 8940, 9154, 10281, 11940, 13708, 13731, 17135, 17880, 18308, 20562, 22885, 23880, 27416, 27462, 29651, 34270, 36616, 41124, 45770, 51405, 54924, 59302, 68540, 68655, 82248, 88953, 91540, 102810, 109848, 118604, 137080, 137310, 148255, 177906, 183080, 205620, 237208, 274620, 296510, 355812, 411240, 444765, 549240, 593020, 681973, 711624, 889530, 1186040, 1363946, 1779060, 2045919, 2727892, 3409865, 3558120, 4091838, 5455784, 6819730, 8183676, 10229595, 13639460, 16367352, 20459190, 27278920, 40918380, 81836760]

約数ペア:

[(1, 81836760), (2, 40918380), (3, 27278920), (4, 20459190), (5, 16367352), (6, 13639460), (8, 10229595), (10, 8183676), (12, 6819730), (15, 5455784), (20, 4091838), (23, 3558120), (24, 3409865), (30, 2727892), (40, 2045919), (46, 1779060), (60, 1363946), (69, 1186040), (92, 889530), (115, 711624), (120, 681973), (138, 593020), (149, 549240), (184, 444765), (199, 411240), (230, 355812), (276, 296510), (298, 274620), (345, 237208), (398, 205620), (447, 183080), (460, 177906), (552, 148255), (596, 137310), (597, 137080), (690, 118604), (745, 109848), (796, 102810), (894, 91540), (920, 88953), (995, 82248), (1192, 68655), (1194, 68540), (1380, 59302), (1490, 54924), (1592, 51405), (1788, 45770), (1990, 41124), (2235, 36616), (2388, 34270), (2760, 29651), (2980, 27462), (2985, 27416), (3427, 23880), (3576, 22885), (3980, 20562), (4470, 18308), (4577, 17880), (4776, 17135), (5960, 13731), (5970, 13708), (6854, 11940), (7960, 10281), (8940, 9154)]