8956040

素因数分解:

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

素因数の和:222

約数の個数: 64

約数和(自身を含む): 21288960

約数和(自身を除く): 12332920

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 41, 43, 82, 86, 127, 164, 172, 205, 215, 254, 328, 344, 410, 430, 508, 635, 820, 860, 1016, 1270, 1640, 1720, 1763, 2540, 3526, 5080, 5207, 5461, 7052, 8815, 10414, 10922, 14104, 17630, 20828, 21844, 26035, 27305, 35260, 41656, 43688, 52070, 54610, 70520, 104140, 109220, 208280, 218440, 223901, 447802, 895604, 1119505, 1791208, 2239010, 4478020, 8956040]

約数ペア:

[(1, 8956040), (2, 4478020), (4, 2239010), (5, 1791208), (8, 1119505), (10, 895604), (20, 447802), (40, 223901), (41, 218440), (43, 208280), (82, 109220), (86, 104140), (127, 70520), (164, 54610), (172, 52070), (205, 43688), (215, 41656), (254, 35260), (328, 27305), (344, 26035), (410, 21844), (430, 20828), (508, 17630), (635, 14104), (820, 10922), (860, 10414), (1016, 8815), (1270, 7052), (1640, 5461), (1720, 5207), (1763, 5080), (2540, 3526)]