205415040

素因数分解:

$2^7\times 3^1\times 5^1\times {\mathrm{83}}^1\times {\mathrm{1289}}^1$

素因数の和:1394

約数の個数: 128

約数和(自身を含む): 663163200

約数和(自身を除く): 457748160

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 83, 96, 120, 128, 160, 166, 192, 240, 249, 320, 332, 384, 415, 480, 498, 640, 664, 830, 960, 996, 1245, 1289, 1328, 1660, 1920, 1992, 2490, 2578, 2656, 3320, 3867, 3984, 4980, 5156, 5312, 6445, 6640, 7734, 7968, 9960, 10312, 10624, 12890, 13280, 15468, 15936, 19335, 19920, 20624, 25780, 26560, 30936, 31872, 38670, 39840, 41248, 51560, 53120, 61872, 77340, 79680, 82496, 103120, 106987, 123744, 154680, 159360, 164992, 206240, 213974, 247488, 309360, 320961, 412480, 427948, 494976, 534935, 618720, 641922, 824960, 855896, 1069870, 1237440, 1283844, 1604805, 1711792, 2139740, 2474880, 2567688, 3209610, 3423584, 4279480, 5135376, 6419220, 6847168, 8558960, 10270752, 12838440, 13694336, 17117920, 20541504, 25676880, 34235840, 41083008, 51353760, 68471680, 102707520, 205415040]

約数ペア:

[(1, 205415040), (2, 102707520), (3, 68471680), (4, 51353760), (5, 41083008), (6, 34235840), (8, 25676880), (10, 20541504), (12, 17117920), (15, 13694336), (16, 12838440), (20, 10270752), (24, 8558960), (30, 6847168), (32, 6419220), (40, 5135376), (48, 4279480), (60, 3423584), (64, 3209610), (80, 2567688), (83, 2474880), (96, 2139740), (120, 1711792), (128, 1604805), (160, 1283844), (166, 1237440), (192, 1069870), (240, 855896), (249, 824960), (320, 641922), (332, 618720), (384, 534935), (415, 494976), (480, 427948), (498, 412480), (640, 320961), (664, 309360), (830, 247488), (960, 213974), (996, 206240), (1245, 164992), (1289, 159360), (1328, 154680), (1660, 123744), (1920, 106987), (1992, 103120), (2490, 82496), (2578, 79680), (2656, 77340), (3320, 61872), (3867, 53120), (3984, 51560), (4980, 41248), (5156, 39840), (5312, 38670), (6445, 31872), (6640, 30936), (7734, 26560), (7968, 25780), (9960, 20624), (10312, 19920), (10624, 19335), (12890, 15936), (13280, 15468)]