212104240

素因数分解:

$2^4\times 5^1\times {\mathrm{17}}^1\times {\mathrm{263}}^1\times {\mathrm{593}}^1$

素因数の和:886

約数の個数: 80

約数和(自身を含む): 525019968

約数和(自身を除く): 312915728

約数列:

[1, 2, 4, 5, 8, 10, 16, 17, 20, 34, 40, 68, 80, 85, 136, 170, 263, 272, 340, 526, 593, 680, 1052, 1186, 1315, 1360, 2104, 2372, 2630, 2965, 4208, 4471, 4744, 5260, 5930, 8942, 9488, 10081, 10520, 11860, 17884, 20162, 21040, 22355, 23720, 35768, 40324, 44710, 47440, 50405, 71536, 80648, 89420, 100810, 155959, 161296, 178840, 201620, 311918, 357680, 403240, 623836, 779795, 806480, 1247672, 1559590, 2495344, 2651303, 3119180, 5302606, 6238360, 10605212, 12476720, 13256515, 21210424, 26513030, 42420848, 53026060, 106052120, 212104240]

約数ペア:

[(1, 212104240), (2, 106052120), (4, 53026060), (5, 42420848), (8, 26513030), (10, 21210424), (16, 13256515), (17, 12476720), (20, 10605212), (34, 6238360), (40, 5302606), (68, 3119180), (80, 2651303), (85, 2495344), (136, 1559590), (170, 1247672), (263, 806480), (272, 779795), (340, 623836), (526, 403240), (593, 357680), (680, 311918), (1052, 201620), (1186, 178840), (1315, 161296), (1360, 155959), (2104, 100810), (2372, 89420), (2630, 80648), (2965, 71536), (4208, 50405), (4471, 47440), (4744, 44710), (5260, 40324), (5930, 35768), (8942, 23720), (9488, 22355), (10081, 21040), (10520, 20162), (11860, 17884)]