78397840

素因数分解:

$2^4\times 5^1\times {\mathrm{149}}^1\times {\mathrm{6577}}^1$

素因数の和:6739

約数の個数: 40

約数和(自身を含む): 183526200

約数和(自身を除く): 105128360

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 40, 80, 149, 298, 596, 745, 1192, 1490, 2384, 2980, 5960, 6577, 11920, 13154, 26308, 32885, 52616, 65770, 105232, 131540, 263080, 526160, 979973, 1959946, 3919892, 4899865, 7839784, 9799730, 15679568, 19599460, 39198920, 78397840]

約数ペア:

[(1, 78397840), (2, 39198920), (4, 19599460), (5, 15679568), (8, 9799730), (10, 7839784), (16, 4899865), (20, 3919892), (40, 1959946), (80, 979973), (149, 526160), (298, 263080), (596, 131540), (745, 105232), (1192, 65770), (1490, 52616), (2384, 32885), (2980, 26308), (5960, 13154), (6577, 11920)]