80879960

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:721

約数の個数: 128

約数和(自身を含む): 228787200

約数和(自身を除く): 147907240

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 92, 95, 115, 133, 140, 152, 161, 184, 190, 230, 266, 280, 322, 380, 437, 460, 532, 644, 661, 665, 760, 805, 874, 920, 1064, 1288, 1322, 1330, 1610, 1748, 2185, 2644, 2660, 3059, 3220, 3305, 3496, 4370, 4627, 5288, 5320, 6118, 6440, 6610, 8740, 9254, 12236, 12559, 13220, 15203, 15295, 17480, 18508, 23135, 24472, 25118, 26440, 30406, 30590, 37016, 46270, 50236, 60812, 61180, 62795, 76015, 87913, 92540, 100472, 106421, 121624, 122360, 125590, 152030, 175826, 185080, 212842, 251180, 288857, 304060, 351652, 425684, 439565, 502360, 532105, 577714, 608120, 703304, 851368, 879130, 1064210, 1155428, 1444285, 1758260, 2021999, 2128420, 2310856, 2888570, 3516520, 4043998, 4256840, 5777140, 8087996, 10109995, 11554280, 16175992, 20219990, 40439980, 80879960]

約数ペア:

[(1, 80879960), (2, 40439980), (4, 20219990), (5, 16175992), (7, 11554280), (8, 10109995), (10, 8087996), (14, 5777140), (19, 4256840), (20, 4043998), (23, 3516520), (28, 2888570), (35, 2310856), (38, 2128420), (40, 2021999), (46, 1758260), (56, 1444285), (70, 1155428), (76, 1064210), (92, 879130), (95, 851368), (115, 703304), (133, 608120), (140, 577714), (152, 532105), (161, 502360), (184, 439565), (190, 425684), (230, 351652), (266, 304060), (280, 288857), (322, 251180), (380, 212842), (437, 185080), (460, 175826), (532, 152030), (644, 125590), (661, 122360), (665, 121624), (760, 106421), (805, 100472), (874, 92540), (920, 87913), (1064, 76015), (1288, 62795), (1322, 61180), (1330, 60812), (1610, 50236), (1748, 46270), (2185, 37016), (2644, 30590), (2660, 30406), (3059, 26440), (3220, 25118), (3305, 24472), (3496, 23135), (4370, 18508), (4627, 17480), (5288, 15295), (5320, 15203), (6118, 13220), (6440, 12559), (6610, 12236), (8740, 9254)]