80753920

素因数分解:

$2^8\times 5^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{211}}^1$

素因数の和:268

約数の個数: 144

約数和(自身を含む): 218397312

約数和(自身を除く): 137643392

約数列:

[1, 2, 4, 5, 8, 10, 13, 16, 20, 23, 26, 32, 40, 46, 52, 64, 65, 80, 92, 104, 115, 128, 130, 160, 184, 208, 211, 230, 256, 260, 299, 320, 368, 416, 422, 460, 520, 598, 640, 736, 832, 844, 920, 1040, 1055, 1196, 1280, 1472, 1495, 1664, 1688, 1840, 2080, 2110, 2392, 2743, 2944, 2990, 3328, 3376, 3680, 4160, 4220, 4784, 4853, 5486, 5888, 5980, 6752, 7360, 8320, 8440, 9568, 9706, 10972, 11960, 13504, 13715, 14720, 16640, 16880, 19136, 19412, 21944, 23920, 24265, 27008, 27430, 29440, 33760, 38272, 38824, 43888, 47840, 48530, 54016, 54860, 63089, 67520, 76544, 77648, 87776, 95680, 97060, 109720, 126178, 135040, 155296, 175552, 191360, 194120, 219440, 252356, 270080, 310592, 315445, 351104, 382720, 388240, 438880, 504712, 621184, 630890, 702208, 776480, 877760, 1009424, 1242368, 1261780, 1552960, 1755520, 2018848, 2523560, 3105920, 3511040, 4037696, 5047120, 6211840, 8075392, 10094240, 16150784, 20188480, 40376960, 80753920]

約数ペア:

[(1, 80753920), (2, 40376960), (4, 20188480), (5, 16150784), (8, 10094240), (10, 8075392), (13, 6211840), (16, 5047120), (20, 4037696), (23, 3511040), (26, 3105920), (32, 2523560), (40, 2018848), (46, 1755520), (52, 1552960), (64, 1261780), (65, 1242368), (80, 1009424), (92, 877760), (104, 776480), (115, 702208), (128, 630890), (130, 621184), (160, 504712), (184, 438880), (208, 388240), (211, 382720), (230, 351104), (256, 315445), (260, 310592), (299, 270080), (320, 252356), (368, 219440), (416, 194120), (422, 191360), (460, 175552), (520, 155296), (598, 135040), (640, 126178), (736, 109720), (832, 97060), (844, 95680), (920, 87776), (1040, 77648), (1055, 76544), (1196, 67520), (1280, 63089), (1472, 54860), (1495, 54016), (1664, 48530), (1688, 47840), (1840, 43888), (2080, 38824), (2110, 38272), (2392, 33760), (2743, 29440), (2944, 27430), (2990, 27008), (3328, 24265), (3376, 23920), (3680, 21944), (4160, 19412), (4220, 19136), (4784, 16880), (4853, 16640), (5486, 14720), (5888, 13715), (5980, 13504), (6752, 11960), (7360, 10972), (8320, 9706), (8440, 9568)]