68781440

素因数分解:

$2^7\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{1181}}^1$

素因数の和:1220

約数の個数: 128

約数和(自身を含む): 202547520

約数和(自身を除く): 133766080

約数列:

[1, 2, 4, 5, 7, 8, 10, 13, 14, 16, 20, 26, 28, 32, 35, 40, 52, 56, 64, 65, 70, 80, 91, 104, 112, 128, 130, 140, 160, 182, 208, 224, 260, 280, 320, 364, 416, 448, 455, 520, 560, 640, 728, 832, 896, 910, 1040, 1120, 1181, 1456, 1664, 1820, 2080, 2240, 2362, 2912, 3640, 4160, 4480, 4724, 5824, 5905, 7280, 8267, 8320, 9448, 11648, 11810, 14560, 15353, 16534, 18896, 23620, 29120, 30706, 33068, 37792, 41335, 47240, 58240, 61412, 66136, 75584, 76765, 82670, 94480, 107471, 122824, 132272, 151168, 153530, 165340, 188960, 214942, 245648, 264544, 307060, 330680, 377920, 429884, 491296, 529088, 537355, 614120, 661360, 755840, 859768, 982592, 1058176, 1074710, 1228240, 1322720, 1719536, 1965184, 2149420, 2456480, 2645440, 3439072, 4298840, 4912960, 5290880, 6878144, 8597680, 9825920, 13756288, 17195360, 34390720, 68781440]

約数ペア:

[(1, 68781440), (2, 34390720), (4, 17195360), (5, 13756288), (7, 9825920), (8, 8597680), (10, 6878144), (13, 5290880), (14, 4912960), (16, 4298840), (20, 3439072), (26, 2645440), (28, 2456480), (32, 2149420), (35, 1965184), (40, 1719536), (52, 1322720), (56, 1228240), (64, 1074710), (65, 1058176), (70, 982592), (80, 859768), (91, 755840), (104, 661360), (112, 614120), (128, 537355), (130, 529088), (140, 491296), (160, 429884), (182, 377920), (208, 330680), (224, 307060), (260, 264544), (280, 245648), (320, 214942), (364, 188960), (416, 165340), (448, 153530), (455, 151168), (520, 132272), (560, 122824), (640, 107471), (728, 94480), (832, 82670), (896, 76765), (910, 75584), (1040, 66136), (1120, 61412), (1181, 58240), (1456, 47240), (1664, 41335), (1820, 37792), (2080, 33068), (2240, 30706), (2362, 29120), (2912, 23620), (3640, 18896), (4160, 16534), (4480, 15353), (4724, 14560), (5824, 11810), (5905, 11648), (7280, 9448), (8267, 8320)]