82686280

素因数分解:

$2^3\times 5^1\times {\mathrm{317}}^1\times {\mathrm{6521}}^1$

素因数の和:6849

約数の個数: 32

約数和(自身を含む): 186659640

約数和(自身を除く): 103973360

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 317, 634, 1268, 1585, 2536, 3170, 6340, 6521, 12680, 13042, 26084, 32605, 52168, 65210, 130420, 260840, 2067157, 4134314, 8268628, 10335785, 16537256, 20671570, 41343140, 82686280]

約数ペア:

[(1, 82686280), (2, 41343140), (4, 20671570), (5, 16537256), (8, 10335785), (10, 8268628), (20, 4134314), (40, 2067157), (317, 260840), (634, 130420), (1268, 65210), (1585, 52168), (2536, 32605), (3170, 26084), (6340, 13042), (6521, 12680)]