81276480

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{409}}^1$

素因数の和:458

約数の個数: 224

約数和(自身を含む): 299923200

約数和(自身を除く): 218646720

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, 90, 92, 96, 108, 115, 120, 135, 138, 144, 160, 180, 184, 192, 207, 216, 230, 240, 270, 276, 288, 320, 345, 360, 368, 409, 414, 432, 460, 480, 540, 552, 576, 621, 690, 720, 736, 818, 828, 864, 920, 960, 1035, 1080, 1104, 1227, 1242, 1380, 1440, 1472, 1636, 1656, 1728, 1840, 2045, 2070, 2160, 2208, 2454, 2484, 2760, 2880, 3105, 3272, 3312, 3680, 3681, 4090, 4140, 4320, 4416, 4908, 4968, 5520, 6135, 6210, 6544, 6624, 7360, 7362, 8180, 8280, 8640, 9407, 9816, 9936, 11040, 11043, 12270, 12420, 13088, 13248, 14724, 16360, 16560, 18405, 18814, 19632, 19872, 22080, 22086, 24540, 24840, 26176, 28221, 29448, 32720, 33120, 36810, 37628, 39264, 39744, 44172, 47035, 49080, 49680, 55215, 56442, 58896, 65440, 66240, 73620, 75256, 78528, 84663, 88344, 94070, 98160, 99360, 110430, 112884, 117792, 130880, 141105, 147240, 150512, 169326, 176688, 188140, 196320, 198720, 220860, 225768, 235584, 253989, 282210, 294480, 301024, 338652, 353376, 376280, 392640, 423315, 441720, 451536, 507978, 564420, 588960, 602048, 677304, 706752, 752560, 846630, 883440, 903072, 1015956, 1128840, 1177920, 1269945, 1354608, 1505120, 1693260, 1766880, 1806144, 2031912, 2257680, 2539890, 2709216, 3010240, 3386520, 3533760, 4063824, 4515360, 5079780, 5418432, 6773040, 8127648, 9030720, 10159560, 13546080, 16255296, 20319120, 27092160, 40638240, 81276480]

約数ペア:

[(1, 81276480), (2, 40638240), (3, 27092160), (4, 20319120), (5, 16255296), (6, 13546080), (8, 10159560), (9, 9030720), (10, 8127648), (12, 6773040), (15, 5418432), (16, 5079780), (18, 4515360), (20, 4063824), (23, 3533760), (24, 3386520), (27, 3010240), (30, 2709216), (32, 2539890), (36, 2257680), (40, 2031912), (45, 1806144), (46, 1766880), (48, 1693260), (54, 1505120), (60, 1354608), (64, 1269945), (69, 1177920), (72, 1128840), (80, 1015956), (90, 903072), (92, 883440), (96, 846630), (108, 752560), (115, 706752), (120, 677304), (135, 602048), (138, 588960), (144, 564420), (160, 507978), (180, 451536), (184, 441720), (192, 423315), (207, 392640), (216, 376280), (230, 353376), (240, 338652), (270, 301024), (276, 294480), (288, 282210), (320, 253989), (345, 235584), (360, 225768), (368, 220860), (409, 198720), (414, 196320), (432, 188140), (460, 176688), (480, 169326), (540, 150512), (552, 147240), (576, 141105), (621, 130880), (690, 117792), (720, 112884), (736, 110430), (818, 99360), (828, 98160), (864, 94070), (920, 88344), (960, 84663), (1035, 78528), (1080, 75256), (1104, 73620), (1227, 66240), (1242, 65440), (1380, 58896), (1440, 56442), (1472, 55215), (1636, 49680), (1656, 49080), (1728, 47035), (1840, 44172), (2045, 39744), (2070, 39264), (2160, 37628), (2208, 36810), (2454, 33120), (2484, 32720), (2760, 29448), (2880, 28221), (3105, 26176), (3272, 24840), (3312, 24540), (3680, 22086), (3681, 22080), (4090, 19872), (4140, 19632), (4320, 18814), (4416, 18405), (4908, 16560), (4968, 16360), (5520, 14724), (6135, 13248), (6210, 13088), (6544, 12420), (6624, 12270), (7360, 11043), (7362, 11040), (8180, 9936), (8280, 9816), (8640, 9407)]