81438720

素因数分解:

$2^{11}\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{241}}^1$

素因数の和:282

約数の個数: 192

約数和(自身を含む): 285405120

約数和(自身を除く): 203966400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 32, 33, 40, 44, 48, 55, 60, 64, 66, 80, 88, 96, 110, 120, 128, 132, 160, 165, 176, 192, 220, 240, 241, 256, 264, 320, 330, 352, 384, 440, 480, 482, 512, 528, 640, 660, 704, 723, 768, 880, 960, 964, 1024, 1056, 1205, 1280, 1320, 1408, 1446, 1536, 1760, 1920, 1928, 2048, 2112, 2410, 2560, 2640, 2651, 2816, 2892, 3072, 3520, 3615, 3840, 3856, 4224, 4820, 5120, 5280, 5302, 5632, 5784, 6144, 7040, 7230, 7680, 7712, 7953, 8448, 9640, 10240, 10560, 10604, 11264, 11568, 13255, 14080, 14460, 15360, 15424, 15906, 16896, 19280, 21120, 21208, 22528, 23136, 26510, 28160, 28920, 30720, 30848, 31812, 33792, 38560, 39765, 42240, 42416, 46272, 53020, 56320, 57840, 61696, 63624, 67584, 77120, 79530, 84480, 84832, 92544, 106040, 112640, 115680, 123392, 127248, 154240, 159060, 168960, 169664, 185088, 212080, 231360, 246784, 254496, 308480, 318120, 337920, 339328, 370176, 424160, 462720, 493568, 508992, 616960, 636240, 678656, 740352, 848320, 925440, 1017984, 1233920, 1272480, 1357312, 1480704, 1696640, 1850880, 2035968, 2467840, 2544960, 2714624, 3393280, 3701760, 4071936, 5089920, 5429248, 6786560, 7403520, 8143872, 10179840, 13573120, 16287744, 20359680, 27146240, 40719360, 81438720]

約数ペア:

[(1, 81438720), (2, 40719360), (3, 27146240), (4, 20359680), (5, 16287744), (6, 13573120), (8, 10179840), (10, 8143872), (11, 7403520), (12, 6786560), (15, 5429248), (16, 5089920), (20, 4071936), (22, 3701760), (24, 3393280), (30, 2714624), (32, 2544960), (33, 2467840), (40, 2035968), (44, 1850880), (48, 1696640), (55, 1480704), (60, 1357312), (64, 1272480), (66, 1233920), (80, 1017984), (88, 925440), (96, 848320), (110, 740352), (120, 678656), (128, 636240), (132, 616960), (160, 508992), (165, 493568), (176, 462720), (192, 424160), (220, 370176), (240, 339328), (241, 337920), (256, 318120), (264, 308480), (320, 254496), (330, 246784), (352, 231360), (384, 212080), (440, 185088), (480, 169664), (482, 168960), (512, 159060), (528, 154240), (640, 127248), (660, 123392), (704, 115680), (723, 112640), (768, 106040), (880, 92544), (960, 84832), (964, 84480), (1024, 79530), (1056, 77120), (1205, 67584), (1280, 63624), (1320, 61696), (1408, 57840), (1446, 56320), (1536, 53020), (1760, 46272), (1920, 42416), (1928, 42240), (2048, 39765), (2112, 38560), (2410, 33792), (2560, 31812), (2640, 30848), (2651, 30720), (2816, 28920), (2892, 28160), (3072, 26510), (3520, 23136), (3615, 22528), (3840, 21208), (3856, 21120), (4224, 19280), (4820, 16896), (5120, 15906), (5280, 15424), (5302, 15360), (5632, 14460), (5784, 14080), (6144, 13255), (7040, 11568), (7230, 11264), (7680, 10604), (7712, 10560), (7953, 10240), (8448, 9640)]