291551280

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{149}}^1\times {\mathrm{263}}^1$

素因数の和:459

約数の個数: 160

約数和(自身を含む): 942796800

約数和(自身を除く): 651245520

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 31, 40, 48, 60, 62, 80, 93, 120, 124, 149, 155, 186, 240, 248, 263, 298, 310, 372, 447, 465, 496, 526, 596, 620, 744, 745, 789, 894, 930, 1052, 1192, 1240, 1315, 1488, 1490, 1578, 1788, 1860, 2104, 2235, 2384, 2480, 2630, 2980, 3156, 3576, 3720, 3945, 4208, 4470, 4619, 5260, 5960, 6312, 7152, 7440, 7890, 8153, 8940, 9238, 10520, 11920, 12624, 13857, 15780, 16306, 17880, 18476, 21040, 23095, 24459, 27714, 31560, 32612, 35760, 36952, 39187, 40765, 46190, 48918, 55428, 63120, 65224, 69285, 73904, 78374, 81530, 92380, 97836, 110856, 117561, 122295, 130448, 138570, 156748, 163060, 184760, 195672, 195935, 221712, 235122, 244590, 277140, 313496, 326120, 369520, 391344, 391870, 470244, 489180, 554280, 587805, 626992, 652240, 783740, 940488, 978360, 1108560, 1175610, 1214797, 1567480, 1880976, 1956720, 2351220, 2429594, 3134960, 3644391, 4702440, 4859188, 6073985, 7288782, 9404880, 9718376, 12147970, 14577564, 18221955, 19436752, 24295940, 29155128, 36443910, 48591880, 58310256, 72887820, 97183760, 145775640, 291551280]

約数ペア:

[(1, 291551280), (2, 145775640), (3, 97183760), (4, 72887820), (5, 58310256), (6, 48591880), (8, 36443910), (10, 29155128), (12, 24295940), (15, 19436752), (16, 18221955), (20, 14577564), (24, 12147970), (30, 9718376), (31, 9404880), (40, 7288782), (48, 6073985), (60, 4859188), (62, 4702440), (80, 3644391), (93, 3134960), (120, 2429594), (124, 2351220), (149, 1956720), (155, 1880976), (186, 1567480), (240, 1214797), (248, 1175610), (263, 1108560), (298, 978360), (310, 940488), (372, 783740), (447, 652240), (465, 626992), (496, 587805), (526, 554280), (596, 489180), (620, 470244), (744, 391870), (745, 391344), (789, 369520), (894, 326120), (930, 313496), (1052, 277140), (1192, 244590), (1240, 235122), (1315, 221712), (1488, 195935), (1490, 195672), (1578, 184760), (1788, 163060), (1860, 156748), (2104, 138570), (2235, 130448), (2384, 122295), (2480, 117561), (2630, 110856), (2980, 97836), (3156, 92380), (3576, 81530), (3720, 78374), (3945, 73904), (4208, 69285), (4470, 65224), (4619, 63120), (5260, 55428), (5960, 48918), (6312, 46190), (7152, 40765), (7440, 39187), (7890, 36952), (8153, 35760), (8940, 32612), (9238, 31560), (10520, 27714), (11920, 24459), (12624, 23095), (13857, 21040), (15780, 18476), (16306, 17880)]