201980205

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{139}}^1\times {\mathrm{659}}^1$

素因数の和:823

約数の個数: 72

約数和(自身を含む): 410810400

約数和(自身を除く): 208830195

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 139, 147, 245, 315, 417, 441, 659, 695, 735, 973, 1251, 1977, 2085, 2205, 2919, 3295, 4613, 4865, 5931, 6255, 6811, 8757, 9885, 13839, 14595, 20433, 23065, 29655, 32291, 34055, 41517, 43785, 61299, 69195, 91601, 96873, 102165, 161455, 207585, 274803, 290619, 306495, 458005, 484365, 641207, 824409, 1374015, 1453095, 1923621, 3206035, 4122045, 4488449, 5770863, 9618105, 13465347, 22442245, 28854315, 40396041, 67326735, 201980205]

約数ペア:

[(1, 201980205), (3, 67326735), (5, 40396041), (7, 28854315), (9, 22442245), (15, 13465347), (21, 9618105), (35, 5770863), (45, 4488449), (49, 4122045), (63, 3206035), (105, 1923621), (139, 1453095), (147, 1374015), (245, 824409), (315, 641207), (417, 484365), (441, 458005), (659, 306495), (695, 290619), (735, 274803), (973, 207585), (1251, 161455), (1977, 102165), (2085, 96873), (2205, 91601), (2919, 69195), (3295, 61299), (4613, 43785), (4865, 41517), (5931, 34055), (6255, 32291), (6811, 29655), (8757, 23065), (9885, 20433), (13839, 14595)]