256944960

素因数分解:

$2^6\times 3^4\times 5^1\times {\mathrm{23}}^1\times {\mathrm{431}}^1$

素因数の和:483

約数の個数: 280

約数和(自身を含む): 955950336

約数和(自身を除く): 699005376

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 23, 24, 27, 30, 32, 36, 40, 45, 46, 48, 54, 60, 64, 69, 72, 80, 81, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 162, 180, 184, 192, 207, 216, 230, 240, 270, 276, 288, 320, 324, 345, 360, 368, 405, 414, 431, 432, 460, 480, 540, 552, 576, 621, 648, 690, 720, 736, 810, 828, 862, 864, 920, 960, 1035, 1080, 1104, 1242, 1293, 1296, 1380, 1440, 1472, 1620, 1656, 1724, 1728, 1840, 1863, 2070, 2155, 2160, 2208, 2484, 2586, 2592, 2760, 2880, 3105, 3240, 3312, 3448, 3680, 3726, 3879, 4140, 4310, 4320, 4416, 4968, 5172, 5184, 5520, 6210, 6465, 6480, 6624, 6896, 7360, 7452, 7758, 8280, 8620, 8640, 9315, 9913, 9936, 10344, 11040, 11637, 12420, 12930, 12960, 13248, 13792, 14904, 15516, 16560, 17240, 18630, 19395, 19826, 19872, 20688, 22080, 23274, 24840, 25860, 25920, 27584, 29739, 29808, 31032, 33120, 34480, 34911, 37260, 38790, 39652, 39744, 41376, 46548, 49565, 49680, 51720, 58185, 59478, 59616, 62064, 66240, 68960, 69822, 74520, 77580, 79304, 82752, 89217, 93096, 99130, 99360, 103440, 116370, 118956, 119232, 124128, 137920, 139644, 148695, 149040, 155160, 158608, 174555, 178434, 186192, 198260, 198720, 206880, 232740, 237912, 248256, 267651, 279288, 297390, 298080, 310320, 317216, 349110, 356868, 372384, 396520, 413760, 446085, 465480, 475824, 535302, 558576, 594780, 596160, 620640, 634432, 698220, 713736, 744768, 793040, 802953, 892170, 930960, 951648, 1070604, 1117152, 1189560, 1241280, 1338255, 1396440, 1427472, 1586080, 1605906, 1784340, 1861920, 1903296, 2141208, 2234304, 2379120, 2676510, 2792880, 2854944, 3172160, 3211812, 3568680, 3723840, 4014765, 4282416, 4758240, 5353020, 5585760, 5709888, 6423624, 7137360, 8029530, 8564832, 9516480, 10706040, 11171520, 12847248, 14274720, 16059060, 17129664, 21412080, 25694496, 28549440, 32118120, 42824160, 51388992, 64236240, 85648320, 128472480, 256944960]

約数ペア:

[(1, 256944960), (2, 128472480), (3, 85648320), (4, 64236240), (5, 51388992), (6, 42824160), (8, 32118120), (9, 28549440), (10, 25694496), (12, 21412080), (15, 17129664), (16, 16059060), (18, 14274720), (20, 12847248), (23, 11171520), (24, 10706040), (27, 9516480), (30, 8564832), (32, 8029530), (36, 7137360), (40, 6423624), (45, 5709888), (46, 5585760), (48, 5353020), (54, 4758240), (60, 4282416), (64, 4014765), (69, 3723840), (72, 3568680), (80, 3211812), (81, 3172160), (90, 2854944), (92, 2792880), (96, 2676510), (108, 2379120), (115, 2234304), (120, 2141208), (135, 1903296), (138, 1861920), (144, 1784340), (160, 1605906), (162, 1586080), (180, 1427472), (184, 1396440), (192, 1338255), (207, 1241280), (216, 1189560), (230, 1117152), (240, 1070604), (270, 951648), (276, 930960), (288, 892170), (320, 802953), (324, 793040), (345, 744768), (360, 713736), (368, 698220), (405, 634432), (414, 620640), (431, 596160), (432, 594780), (460, 558576), (480, 535302), (540, 475824), (552, 465480), (576, 446085), (621, 413760), (648, 396520), (690, 372384), (720, 356868), (736, 349110), (810, 317216), (828, 310320), (862, 298080), (864, 297390), (920, 279288), (960, 267651), (1035, 248256), (1080, 237912), (1104, 232740), (1242, 206880), (1293, 198720), (1296, 198260), (1380, 186192), (1440, 178434), (1472, 174555), (1620, 158608), (1656, 155160), (1724, 149040), (1728, 148695), (1840, 139644), (1863, 137920), (2070, 124128), (2155, 119232), (2160, 118956), (2208, 116370), (2484, 103440), (2586, 99360), (2592, 99130), (2760, 93096), (2880, 89217), (3105, 82752), (3240, 79304), (3312, 77580), (3448, 74520), (3680, 69822), (3726, 68960), (3879, 66240), (4140, 62064), (4310, 59616), (4320, 59478), (4416, 58185), (4968, 51720), (5172, 49680), (5184, 49565), (5520, 46548), (6210, 41376), (6465, 39744), (6480, 39652), (6624, 38790), (6896, 37260), (7360, 34911), (7452, 34480), (7758, 33120), (8280, 31032), (8620, 29808), (8640, 29739), (9315, 27584), (9913, 25920), (9936, 25860), (10344, 24840), (11040, 23274), (11637, 22080), (12420, 20688), (12930, 19872), (12960, 19826), (13248, 19395), (13792, 18630), (14904, 17240), (15516, 16560)]