68321280

素因数分解:

$2^{15}\times 3^1\times 5^1\times {\mathrm{139}}^1$

素因数の和:177

約数の個数: 128

約数和(自身を含む): 220197600

約数和(自身を除く): 151876320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 24, 30, 32, 40, 48, 60, 64, 80, 96, 120, 128, 139, 160, 192, 240, 256, 278, 320, 384, 417, 480, 512, 556, 640, 695, 768, 834, 960, 1024, 1112, 1280, 1390, 1536, 1668, 1920, 2048, 2085, 2224, 2560, 2780, 3072, 3336, 3840, 4096, 4170, 4448, 5120, 5560, 6144, 6672, 7680, 8192, 8340, 8896, 10240, 11120, 12288, 13344, 15360, 16384, 16680, 17792, 20480, 22240, 24576, 26688, 30720, 32768, 33360, 35584, 40960, 44480, 49152, 53376, 61440, 66720, 71168, 81920, 88960, 98304, 106752, 122880, 133440, 142336, 163840, 177920, 213504, 245760, 266880, 284672, 355840, 427008, 491520, 533760, 569344, 711680, 854016, 1067520, 1138688, 1423360, 1708032, 2135040, 2277376, 2846720, 3416064, 4270080, 4554752, 5693440, 6832128, 8540160, 11386880, 13664256, 17080320, 22773760, 34160640, 68321280]

約数ペア:

[(1, 68321280), (2, 34160640), (3, 22773760), (4, 17080320), (5, 13664256), (6, 11386880), (8, 8540160), (10, 6832128), (12, 5693440), (15, 4554752), (16, 4270080), (20, 3416064), (24, 2846720), (30, 2277376), (32, 2135040), (40, 1708032), (48, 1423360), (60, 1138688), (64, 1067520), (80, 854016), (96, 711680), (120, 569344), (128, 533760), (139, 491520), (160, 427008), (192, 355840), (240, 284672), (256, 266880), (278, 245760), (320, 213504), (384, 177920), (417, 163840), (480, 142336), (512, 133440), (556, 122880), (640, 106752), (695, 98304), (768, 88960), (834, 81920), (960, 71168), (1024, 66720), (1112, 61440), (1280, 53376), (1390, 49152), (1536, 44480), (1668, 40960), (1920, 35584), (2048, 33360), (2085, 32768), (2224, 30720), (2560, 26688), (2780, 24576), (3072, 22240), (3336, 20480), (3840, 17792), (4096, 16680), (4170, 16384), (4448, 15360), (5120, 13344), (5560, 12288), (6144, 11120), (6672, 10240), (7680, 8896), (8192, 8340)]