278071920

素因数分解:

$2^4\times 3^3\times 5^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{347}}^1$

素因数の和:429

約数の個数: 320

約数和(自身を含む): 1118499840

約数和(自身を除く): 840427920

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 35, 36, 40, 42, 45, 48, 53, 54, 56, 60, 63, 70, 72, 80, 84, 90, 105, 106, 108, 112, 120, 126, 135, 140, 144, 159, 168, 180, 189, 210, 212, 216, 240, 252, 265, 270, 280, 315, 318, 336, 347, 360, 371, 378, 420, 424, 432, 477, 504, 530, 540, 560, 630, 636, 694, 720, 742, 756, 795, 840, 848, 945, 954, 1008, 1041, 1060, 1080, 1113, 1260, 1272, 1388, 1431, 1484, 1512, 1590, 1680, 1735, 1855, 1890, 1908, 2082, 2120, 2160, 2226, 2385, 2429, 2520, 2544, 2776, 2862, 2968, 3024, 3123, 3180, 3339, 3470, 3710, 3780, 3816, 4164, 4240, 4452, 4770, 4858, 5040, 5205, 5552, 5565, 5724, 5936, 6246, 6360, 6678, 6940, 7155, 7287, 7420, 7560, 7632, 8328, 8904, 9369, 9540, 9716, 10017, 10410, 11130, 11448, 12145, 12492, 12720, 13356, 13880, 14310, 14574, 14840, 15120, 15615, 16656, 16695, 17808, 18391, 18738, 19080, 19432, 20034, 20820, 21861, 22260, 22896, 24290, 24984, 26712, 27760, 28620, 29148, 29680, 31230, 33390, 36435, 36782, 37476, 38160, 38864, 40068, 41640, 43722, 44520, 46845, 48580, 49968, 50085, 53424, 55173, 57240, 58296, 62460, 65583, 66780, 72870, 73564, 74952, 80136, 83280, 87444, 89040, 91955, 93690, 97160, 100170, 109305, 110346, 114480, 116592, 124920, 128737, 131166, 133560, 145740, 147128, 149904, 160272, 165519, 174888, 183910, 187380, 194320, 200340, 218610, 220692, 249840, 257474, 262332, 267120, 275865, 291480, 294256, 327915, 331038, 349776, 367820, 374760, 386211, 400680, 437220, 441384, 496557, 514948, 524664, 551730, 582960, 643685, 655830, 662076, 735640, 749520, 772422, 801360, 827595, 874440, 882768, 993114, 1029896, 1049328, 1103460, 1158633, 1287370, 1311660, 1324152, 1471280, 1544844, 1655190, 1748880, 1931055, 1986228, 2059792, 2206920, 2317266, 2482785, 2574740, 2623320, 2648304, 3089688, 3310380, 3475899, 3862110, 3972456, 4413840, 4634532, 4965570, 5149480, 5246640, 5793165, 6179376, 6620760, 6951798, 7724220, 7944912, 9269064, 9931140, 10298960, 11586330, 13241520, 13903596, 15448440, 17379495, 18538128, 19862280, 23172660, 27807192, 30896880, 34758990, 39724560, 46345320, 55614384, 69517980, 92690640, 139035960, 278071920]

約数ペア:

[(1, 278071920), (2, 139035960), (3, 92690640), (4, 69517980), (5, 55614384), (6, 46345320), (7, 39724560), (8, 34758990), (9, 30896880), (10, 27807192), (12, 23172660), (14, 19862280), (15, 18538128), (16, 17379495), (18, 15448440), (20, 13903596), (21, 13241520), (24, 11586330), (27, 10298960), (28, 9931140), (30, 9269064), (35, 7944912), (36, 7724220), (40, 6951798), (42, 6620760), (45, 6179376), (48, 5793165), (53, 5246640), (54, 5149480), (56, 4965570), (60, 4634532), (63, 4413840), (70, 3972456), (72, 3862110), (80, 3475899), (84, 3310380), (90, 3089688), (105, 2648304), (106, 2623320), (108, 2574740), (112, 2482785), (120, 2317266), (126, 2206920), (135, 2059792), (140, 1986228), (144, 1931055), (159, 1748880), (168, 1655190), (180, 1544844), (189, 1471280), (210, 1324152), (212, 1311660), (216, 1287370), (240, 1158633), (252, 1103460), (265, 1049328), (270, 1029896), (280, 993114), (315, 882768), (318, 874440), (336, 827595), (347, 801360), (360, 772422), (371, 749520), (378, 735640), (420, 662076), (424, 655830), (432, 643685), (477, 582960), (504, 551730), (530, 524664), (540, 514948), (560, 496557), (630, 441384), (636, 437220), (694, 400680), (720, 386211), (742, 374760), (756, 367820), (795, 349776), (840, 331038), (848, 327915), (945, 294256), (954, 291480), (1008, 275865), (1041, 267120), (1060, 262332), (1080, 257474), (1113, 249840), (1260, 220692), (1272, 218610), (1388, 200340), (1431, 194320), (1484, 187380), (1512, 183910), (1590, 174888), (1680, 165519), (1735, 160272), (1855, 149904), (1890, 147128), (1908, 145740), (2082, 133560), (2120, 131166), (2160, 128737), (2226, 124920), (2385, 116592), (2429, 114480), (2520, 110346), (2544, 109305), (2776, 100170), (2862, 97160), (2968, 93690), (3024, 91955), (3123, 89040), (3180, 87444), (3339, 83280), (3470, 80136), (3710, 74952), (3780, 73564), (3816, 72870), (4164, 66780), (4240, 65583), (4452, 62460), (4770, 58296), (4858, 57240), (5040, 55173), (5205, 53424), (5552, 50085), (5565, 49968), (5724, 48580), (5936, 46845), (6246, 44520), (6360, 43722), (6678, 41640), (6940, 40068), (7155, 38864), (7287, 38160), (7420, 37476), (7560, 36782), (7632, 36435), (8328, 33390), (8904, 31230), (9369, 29680), (9540, 29148), (9716, 28620), (10017, 27760), (10410, 26712), (11130, 24984), (11448, 24290), (12145, 22896), (12492, 22260), (12720, 21861), (13356, 20820), (13880, 20034), (14310, 19432), (14574, 19080), (14840, 18738), (15120, 18391), (15615, 17808), (16656, 16695)]