71721720

素因数分解:

$2^3\times 3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{179}}^1$

素因数の和:259

約数の個数: 256

約数和(自身を含む): 279936000

約数和(自身を除く): 208214280

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 53, 54, 56, 60, 63, 70, 72, 84, 90, 105, 106, 108, 120, 126, 135, 140, 159, 168, 179, 180, 189, 210, 212, 216, 252, 265, 270, 280, 315, 318, 358, 360, 371, 378, 420, 424, 477, 504, 530, 537, 540, 630, 636, 716, 742, 756, 795, 840, 895, 945, 954, 1060, 1074, 1080, 1113, 1253, 1260, 1272, 1431, 1432, 1484, 1512, 1590, 1611, 1790, 1855, 1890, 1908, 2120, 2148, 2226, 2385, 2506, 2520, 2685, 2862, 2968, 3180, 3222, 3339, 3580, 3710, 3759, 3780, 3816, 4296, 4452, 4770, 4833, 5012, 5370, 5565, 5724, 6265, 6360, 6444, 6678, 7155, 7160, 7420, 7518, 7560, 8055, 8904, 9487, 9540, 9666, 10017, 10024, 10740, 11130, 11277, 11448, 12530, 12888, 13356, 14310, 14840, 15036, 16110, 16695, 18795, 18974, 19080, 19332, 20034, 21480, 22260, 22554, 24165, 25060, 26712, 28461, 28620, 30072, 32220, 33390, 33831, 37590, 37948, 38664, 40068, 44520, 45108, 47435, 48330, 50085, 50120, 56385, 56922, 57240, 64440, 66409, 66780, 67662, 75180, 75896, 80136, 85383, 90216, 94870, 96660, 100170, 112770, 113844, 132818, 133560, 135324, 142305, 150360, 169155, 170766, 189740, 193320, 199227, 200340, 225540, 227688, 256149, 265636, 270648, 284610, 332045, 338310, 341532, 379480, 398454, 400680, 426915, 451080, 512298, 531272, 569220, 597681, 664090, 676620, 683064, 796908, 853830, 996135, 1024596, 1138440, 1195362, 1280745, 1328180, 1353240, 1593816, 1707660, 1793043, 1992270, 2049192, 2390724, 2561490, 2656360, 2988405, 3415320, 3586086, 3984540, 4781448, 5122980, 5976810, 7172172, 7969080, 8965215, 10245960, 11953620, 14344344, 17930430, 23907240, 35860860, 71721720]

約数ペア:

[(1, 71721720), (2, 35860860), (3, 23907240), (4, 17930430), (5, 14344344), (6, 11953620), (7, 10245960), (8, 8965215), (9, 7969080), (10, 7172172), (12, 5976810), (14, 5122980), (15, 4781448), (18, 3984540), (20, 3586086), (21, 3415320), (24, 2988405), (27, 2656360), (28, 2561490), (30, 2390724), (35, 2049192), (36, 1992270), (40, 1793043), (42, 1707660), (45, 1593816), (53, 1353240), (54, 1328180), (56, 1280745), (60, 1195362), (63, 1138440), (70, 1024596), (72, 996135), (84, 853830), (90, 796908), (105, 683064), (106, 676620), (108, 664090), (120, 597681), (126, 569220), (135, 531272), (140, 512298), (159, 451080), (168, 426915), (179, 400680), (180, 398454), (189, 379480), (210, 341532), (212, 338310), (216, 332045), (252, 284610), (265, 270648), (270, 265636), (280, 256149), (315, 227688), (318, 225540), (358, 200340), (360, 199227), (371, 193320), (378, 189740), (420, 170766), (424, 169155), (477, 150360), (504, 142305), (530, 135324), (537, 133560), (540, 132818), (630, 113844), (636, 112770), (716, 100170), (742, 96660), (756, 94870), (795, 90216), (840, 85383), (895, 80136), (945, 75896), (954, 75180), (1060, 67662), (1074, 66780), (1080, 66409), (1113, 64440), (1253, 57240), (1260, 56922), (1272, 56385), (1431, 50120), (1432, 50085), (1484, 48330), (1512, 47435), (1590, 45108), (1611, 44520), (1790, 40068), (1855, 38664), (1890, 37948), (1908, 37590), (2120, 33831), (2148, 33390), (2226, 32220), (2385, 30072), (2506, 28620), (2520, 28461), (2685, 26712), (2862, 25060), (2968, 24165), (3180, 22554), (3222, 22260), (3339, 21480), (3580, 20034), (3710, 19332), (3759, 19080), (3780, 18974), (3816, 18795), (4296, 16695), (4452, 16110), (4770, 15036), (4833, 14840), (5012, 14310), (5370, 13356), (5565, 12888), (5724, 12530), (6265, 11448), (6360, 11277), (6444, 11130), (6678, 10740), (7155, 10024), (7160, 10017), (7420, 9666), (7518, 9540), (7560, 9487), (8055, 8904)]