72863720

素因数分解:

$2^3\times 5^1\times {\mathrm{449}}^1\times {\mathrm{4057}}^1$

素因数の和:4517

約数の個数: 32

約数和(自身を含む): 164349000

約数和(自身を除く): 91485280

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 449, 898, 1796, 2245, 3592, 4057, 4490, 8114, 8980, 16228, 17960, 20285, 32456, 40570, 81140, 162280, 1821593, 3643186, 7286372, 9107965, 14572744, 18215930, 36431860, 72863720]

約数ペア:

[(1, 72863720), (2, 36431860), (4, 18215930), (5, 14572744), (8, 9107965), (10, 7286372), (20, 3643186), (40, 1821593), (449, 162280), (898, 81140), (1796, 40570), (2245, 32456), (3592, 20285), (4057, 17960), (4490, 16228), (8114, 8980)]