31236920

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:205

約数の個数: 128

約数和(自身を含む): 85155840

約数和(自身を除く): 53918920

約数列:

[1, 2, 4, 5, 8, 10, 11, 13, 20, 22, 26, 40, 43, 44, 52, 55, 65, 86, 88, 104, 110, 127, 130, 143, 172, 215, 220, 254, 260, 286, 344, 430, 440, 473, 508, 520, 559, 572, 635, 715, 860, 946, 1016, 1118, 1144, 1270, 1397, 1430, 1651, 1720, 1892, 2236, 2365, 2540, 2794, 2795, 2860, 3302, 3784, 4472, 4730, 5080, 5461, 5588, 5590, 5720, 6149, 6604, 6985, 8255, 9460, 10922, 11176, 11180, 12298, 13208, 13970, 16510, 18161, 18920, 21844, 22360, 24596, 27305, 27940, 30745, 33020, 36322, 43688, 49192, 54610, 55880, 60071, 61490, 66040, 70993, 72644, 90805, 109220, 120142, 122980, 141986, 145288, 181610, 218440, 240284, 245960, 283972, 300355, 354965, 363220, 480568, 567944, 600710, 709930, 726440, 780923, 1201420, 1419860, 1561846, 2402840, 2839720, 3123692, 3904615, 6247384, 7809230, 15618460, 31236920]

約数ペア:

[(1, 31236920), (2, 15618460), (4, 7809230), (5, 6247384), (8, 3904615), (10, 3123692), (11, 2839720), (13, 2402840), (20, 1561846), (22, 1419860), (26, 1201420), (40, 780923), (43, 726440), (44, 709930), (52, 600710), (55, 567944), (65, 480568), (86, 363220), (88, 354965), (104, 300355), (110, 283972), (127, 245960), (130, 240284), (143, 218440), (172, 181610), (215, 145288), (220, 141986), (254, 122980), (260, 120142), (286, 109220), (344, 90805), (430, 72644), (440, 70993), (473, 66040), (508, 61490), (520, 60071), (559, 55880), (572, 54610), (635, 49192), (715, 43688), (860, 36322), (946, 33020), (1016, 30745), (1118, 27940), (1144, 27305), (1270, 24596), (1397, 22360), (1430, 21844), (1651, 18920), (1720, 18161), (1892, 16510), (2236, 13970), (2365, 13208), (2540, 12298), (2794, 11180), (2795, 11176), (2860, 10922), (3302, 9460), (3784, 8255), (4472, 6985), (4730, 6604), (5080, 6149), (5461, 5720), (5588, 5590)]