161759920

素因数分解:

$2^4\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:723

約数の個数: 160

約数和(自身を含む): 472826880

約数和(自身を除く): 311066960

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 19, 20, 23, 28, 35, 38, 40, 46, 56, 70, 76, 80, 92, 95, 112, 115, 133, 140, 152, 161, 184, 190, 230, 266, 280, 304, 322, 368, 380, 437, 460, 532, 560, 644, 661, 665, 760, 805, 874, 920, 1064, 1288, 1322, 1330, 1520, 1610, 1748, 1840, 2128, 2185, 2576, 2644, 2660, 3059, 3220, 3305, 3496, 4370, 4627, 5288, 5320, 6118, 6440, 6610, 6992, 8740, 9254, 10576, 10640, 12236, 12559, 12880, 13220, 15203, 15295, 17480, 18508, 23135, 24472, 25118, 26440, 30406, 30590, 34960, 37016, 46270, 48944, 50236, 52880, 60812, 61180, 62795, 74032, 76015, 87913, 92540, 100472, 106421, 121624, 122360, 125590, 152030, 175826, 185080, 200944, 212842, 243248, 244720, 251180, 288857, 304060, 351652, 370160, 425684, 439565, 502360, 532105, 577714, 608120, 703304, 851368, 879130, 1004720, 1064210, 1155428, 1216240, 1406608, 1444285, 1702736, 1758260, 2021999, 2128420, 2310856, 2888570, 3516520, 4043998, 4256840, 4621712, 5777140, 7033040, 8087996, 8513680, 10109995, 11554280, 16175992, 20219990, 23108560, 32351984, 40439980, 80879960, 161759920]

約数ペア:

[(1, 161759920), (2, 80879960), (4, 40439980), (5, 32351984), (7, 23108560), (8, 20219990), (10, 16175992), (14, 11554280), (16, 10109995), (19, 8513680), (20, 8087996), (23, 7033040), (28, 5777140), (35, 4621712), (38, 4256840), (40, 4043998), (46, 3516520), (56, 2888570), (70, 2310856), (76, 2128420), (80, 2021999), (92, 1758260), (95, 1702736), (112, 1444285), (115, 1406608), (133, 1216240), (140, 1155428), (152, 1064210), (161, 1004720), (184, 879130), (190, 851368), (230, 703304), (266, 608120), (280, 577714), (304, 532105), (322, 502360), (368, 439565), (380, 425684), (437, 370160), (460, 351652), (532, 304060), (560, 288857), (644, 251180), (661, 244720), (665, 243248), (760, 212842), (805, 200944), (874, 185080), (920, 175826), (1064, 152030), (1288, 125590), (1322, 122360), (1330, 121624), (1520, 106421), (1610, 100472), (1748, 92540), (1840, 87913), (2128, 76015), (2185, 74032), (2576, 62795), (2644, 61180), (2660, 60812), (3059, 52880), (3220, 50236), (3305, 48944), (3496, 46270), (4370, 37016), (4627, 34960), (5288, 30590), (5320, 30406), (6118, 26440), (6440, 25118), (6610, 24472), (6992, 23135), (8740, 18508), (9254, 17480), (10576, 15295), (10640, 15203), (12236, 13220), (12559, 12880)]