86721680

素因数分解:

$2^4\times 5^1\times {\mathrm{443}}^1\times {\mathrm{2447}}^1$

素因数の和:2903

約数の個数: 40

約数和(自身を含む): 202165632

約数和(自身を除く): 115443952

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 443, 886, 1772, 2215, 2447, 3544, 4430, 4894, 7088, 8860, 9788, 12235, 17720, 19576, 24470, 35440, 39152, 48940, 97880, 195760, 1084021, 2168042, 4336084, 5420105, 8672168, 10840210, 17344336, 21680420, 43360840, 86721680]

約数ペア:

[(1, 86721680), (2, 43360840), (4, 21680420), (5, 17344336), (8, 10840210), (10, 8672168), (16, 5420105), (20, 4336084), (40, 2168042), (80, 1084021), (443, 195760), (886, 97880), (1772, 48940), (2215, 39152), (2447, 35440), (3544, 24470), (4430, 19576), (4894, 17720), (7088, 12235), (8860, 9788)]