18966489880

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{6679}}^1$

素因数の和:6873

約数の個数: 128

約数和(自身を含む): 47403417600

約数和(自身を除く): 28436927720

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 43, 52, 65, 86, 104, 127, 130, 172, 215, 254, 260, 344, 430, 508, 520, 559, 635, 860, 1016, 1118, 1270, 1651, 1720, 2236, 2540, 2795, 3302, 4472, 5080, 5461, 5590, 6604, 6679, 8255, 10922, 11180, 13208, 13358, 16510, 21844, 22360, 26716, 27305, 33020, 33395, 43688, 53432, 54610, 66040, 66790, 70993, 86827, 109220, 133580, 141986, 173654, 218440, 267160, 283972, 287197, 347308, 354965, 434135, 567944, 574394, 694616, 709930, 848233, 868270, 1148788, 1419860, 1435985, 1696466, 1736540, 2297576, 2839720, 2871970, 3392932, 3473080, 3733561, 4241165, 5743940, 6785864, 7467122, 8482330, 11027029, 11487880, 14934244, 16964660, 18667805, 22054058, 29868488, 33929320, 36474019, 37335610, 44108116, 55135145, 72948038, 74671220, 88216232, 110270290, 145896076, 149342440, 182370095, 220540580, 291792152, 364740190, 441081160, 474162247, 729480380, 948324494, 1458960760, 1896648988, 2370811235, 3793297976, 4741622470, 9483244940, 18966489880]

約数ペア:

[(1, 18966489880), (2, 9483244940), (4, 4741622470), (5, 3793297976), (8, 2370811235), (10, 1896648988), (13, 1458960760), (20, 948324494), (26, 729480380), (40, 474162247), (43, 441081160), (52, 364740190), (65, 291792152), (86, 220540580), (104, 182370095), (127, 149342440), (130, 145896076), (172, 110270290), (215, 88216232), (254, 74671220), (260, 72948038), (344, 55135145), (430, 44108116), (508, 37335610), (520, 36474019), (559, 33929320), (635, 29868488), (860, 22054058), (1016, 18667805), (1118, 16964660), (1270, 14934244), (1651, 11487880), (1720, 11027029), (2236, 8482330), (2540, 7467122), (2795, 6785864), (3302, 5743940), (4472, 4241165), (5080, 3733561), (5461, 3473080), (5590, 3392932), (6604, 2871970), (6679, 2839720), (8255, 2297576), (10922, 1736540), (11180, 1696466), (13208, 1435985), (13358, 1419860), (16510, 1148788), (21844, 868270), (22360, 848233), (26716, 709930), (27305, 694616), (33020, 574394), (33395, 567944), (43688, 434135), (53432, 354965), (54610, 347308), (66040, 287197), (66790, 283972), (70993, 267160), (86827, 218440), (109220, 173654), (133580, 141986)]