118178920

素因数分解:

$2^3\times 5^1\times {\mathrm{811}}^1\times {\mathrm{3643}}^1$

素因数の和:4465

約数の個数: 32

約数和(自身を含む): 266303520

約数和(自身を除く): 148124600

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 811, 1622, 3244, 3643, 4055, 6488, 7286, 8110, 14572, 16220, 18215, 29144, 32440, 36430, 72860, 145720, 2954473, 5908946, 11817892, 14772365, 23635784, 29544730, 59089460, 118178920]

約数ペア:

[(1, 118178920), (2, 59089460), (4, 29544730), (5, 23635784), (8, 14772365), (10, 11817892), (20, 5908946), (40, 2954473), (811, 145720), (1622, 72860), (3244, 36430), (3643, 32440), (4055, 29144), (6488, 18215), (7286, 16220), (8110, 14572)]