42158920

素因数分解:

$2^3\times 5^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1$

素因数の和:374

約数の個数: 64

約数和(自身を含む): 98334720

約数和(自身を除く): 56175800

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 43, 86, 127, 172, 193, 215, 254, 344, 386, 430, 508, 635, 772, 860, 965, 1016, 1270, 1544, 1720, 1930, 2540, 3860, 5080, 5461, 7720, 8299, 10922, 16598, 21844, 24511, 27305, 33196, 41495, 43688, 49022, 54610, 66392, 82990, 98044, 109220, 122555, 165980, 196088, 218440, 245110, 331960, 490220, 980440, 1053973, 2107946, 4215892, 5269865, 8431784, 10539730, 21079460, 42158920]

約数ペア:

[(1, 42158920), (2, 21079460), (4, 10539730), (5, 8431784), (8, 5269865), (10, 4215892), (20, 2107946), (40, 1053973), (43, 980440), (86, 490220), (127, 331960), (172, 245110), (193, 218440), (215, 196088), (254, 165980), (344, 122555), (386, 109220), (430, 98044), (508, 82990), (635, 66392), (772, 54610), (860, 49022), (965, 43688), (1016, 41495), (1270, 33196), (1544, 27305), (1720, 24511), (1930, 21844), (2540, 16598), (3860, 10922), (5080, 8299), (5461, 7720)]