205988920

素因数分解:

$2^3\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{127}}^1$

素因数の和:245

約数の個数: 128

約数和(自身を含む): 510935040

約数和(自身を除く): 304946120

約数列:

[1, 2, 4, 5, 8, 10, 20, 23, 40, 41, 43, 46, 82, 86, 92, 115, 127, 164, 172, 184, 205, 215, 230, 254, 328, 344, 410, 430, 460, 508, 635, 820, 860, 920, 943, 989, 1016, 1270, 1640, 1720, 1763, 1886, 1978, 2540, 2921, 3526, 3772, 3956, 4715, 4945, 5080, 5207, 5461, 5842, 7052, 7544, 7912, 8815, 9430, 9890, 10414, 10922, 11684, 14104, 14605, 17630, 18860, 19780, 20828, 21844, 23368, 26035, 27305, 29210, 35260, 37720, 39560, 40549, 41656, 43688, 52070, 54610, 58420, 70520, 81098, 104140, 109220, 116840, 119761, 125603, 162196, 202745, 208280, 218440, 223901, 239522, 251206, 324392, 405490, 447802, 479044, 502412, 598805, 628015, 810980, 895604, 958088, 1004824, 1119505, 1197610, 1256030, 1621960, 1791208, 2239010, 2395220, 2512060, 4478020, 4790440, 5024120, 5149723, 8956040, 10299446, 20598892, 25748615, 41197784, 51497230, 102994460, 205988920]

約数ペア:

[(1, 205988920), (2, 102994460), (4, 51497230), (5, 41197784), (8, 25748615), (10, 20598892), (20, 10299446), (23, 8956040), (40, 5149723), (41, 5024120), (43, 4790440), (46, 4478020), (82, 2512060), (86, 2395220), (92, 2239010), (115, 1791208), (127, 1621960), (164, 1256030), (172, 1197610), (184, 1119505), (205, 1004824), (215, 958088), (230, 895604), (254, 810980), (328, 628015), (344, 598805), (410, 502412), (430, 479044), (460, 447802), (508, 405490), (635, 324392), (820, 251206), (860, 239522), (920, 223901), (943, 218440), (989, 208280), (1016, 202745), (1270, 162196), (1640, 125603), (1720, 119761), (1763, 116840), (1886, 109220), (1978, 104140), (2540, 81098), (2921, 70520), (3526, 58420), (3772, 54610), (3956, 52070), (4715, 43688), (4945, 41656), (5080, 40549), (5207, 39560), (5461, 37720), (5842, 35260), (7052, 29210), (7544, 27305), (7912, 26035), (8815, 23368), (9430, 21844), (9890, 20828), (10414, 19780), (10922, 18860), (11684, 17630), (14104, 14605)]