81347760

素因数分解:

$2^4\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{2897}}^1$

素因数の和:2932

約数の個数: 160

約数和(自身を含む): 301855680

約数和(自身を除く): 220507920

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 48, 52, 54, 60, 65, 72, 78, 80, 90, 104, 108, 117, 120, 130, 135, 144, 156, 180, 195, 208, 216, 234, 240, 260, 270, 312, 351, 360, 390, 432, 468, 520, 540, 585, 624, 702, 720, 780, 936, 1040, 1080, 1170, 1404, 1560, 1755, 1872, 2160, 2340, 2808, 2897, 3120, 3510, 4680, 5616, 5794, 7020, 8691, 9360, 11588, 14040, 14485, 17382, 23176, 26073, 28080, 28970, 34764, 37661, 43455, 46352, 52146, 57940, 69528, 75322, 78219, 86910, 104292, 112983, 115880, 130365, 139056, 150644, 156438, 173820, 188305, 208584, 225966, 231760, 260730, 301288, 312876, 338949, 347640, 376610, 391095, 417168, 451932, 521460, 564915, 602576, 625752, 677898, 695280, 753220, 782190, 903864, 1016847, 1042920, 1129830, 1251504, 1355796, 1506440, 1564380, 1694745, 1807728, 2033694, 2085840, 2259660, 2711592, 3012880, 3128760, 3389490, 4067388, 4519320, 5084235, 5423184, 6257520, 6778980, 8134776, 9038640, 10168470, 13557960, 16269552, 20336940, 27115920, 40673880, 81347760]

約数ペア:

[(1, 81347760), (2, 40673880), (3, 27115920), (4, 20336940), (5, 16269552), (6, 13557960), (8, 10168470), (9, 9038640), (10, 8134776), (12, 6778980), (13, 6257520), (15, 5423184), (16, 5084235), (18, 4519320), (20, 4067388), (24, 3389490), (26, 3128760), (27, 3012880), (30, 2711592), (36, 2259660), (39, 2085840), (40, 2033694), (45, 1807728), (48, 1694745), (52, 1564380), (54, 1506440), (60, 1355796), (65, 1251504), (72, 1129830), (78, 1042920), (80, 1016847), (90, 903864), (104, 782190), (108, 753220), (117, 695280), (120, 677898), (130, 625752), (135, 602576), (144, 564915), (156, 521460), (180, 451932), (195, 417168), (208, 391095), (216, 376610), (234, 347640), (240, 338949), (260, 312876), (270, 301288), (312, 260730), (351, 231760), (360, 225966), (390, 208584), (432, 188305), (468, 173820), (520, 156438), (540, 150644), (585, 139056), (624, 130365), (702, 115880), (720, 112983), (780, 104292), (936, 86910), (1040, 78219), (1080, 75322), (1170, 69528), (1404, 57940), (1560, 52146), (1755, 46352), (1872, 43455), (2160, 37661), (2340, 34764), (2808, 28970), (2897, 28080), (3120, 26073), (3510, 23176), (4680, 17382), (5616, 14485), (5794, 14040), (7020, 11588), (8691, 9360)]